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4270620240 = 243351977139
BaseRepresentation
bin1111111010001100…
…0111111001010000
3102000121220222122000
43332203013321100
532221234321430
61543434114000
7210554446605
oct37643077120
912017828560
104270620240
1118a1721217
129b227b900
13530a03933
142c727a6ac
1519edcde60
hexfe8c7e50

4270620240 has 80 divisors (see below), whose sum is σ = 14709921600. Its totient is φ = 1138831488.

The previous prime is 4270620239. The next prime is 4270620241. The reversal of 4270620240 is 420260724.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4270620239) and next prime (4270620241).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4270620241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 986410 + ... + 990729.

It is an arithmetic number, because the mean of its divisors is an integer number (183874020).

Almost surely, 24270620240 is an apocalyptic number.

4270620240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4270620240 is an abundant number, since it is smaller than the sum of its proper divisors (10439301360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4270620240 is a wasteful number, since it uses less digits than its factorization.

4270620240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977161 (or 1977149 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 4270620240 is about 65349.9827084904. The cubic root of 4270620240 is about 1622.4213448226.

Adding to 4270620240 its reverse (420260724), we get a palindrome (4690880964).

The spelling of 4270620240 in words is "four billion, two hundred seventy million, six hundred twenty thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 108 120 135 144 180 216 240 270 360 432 540 720 1080 2160 1977139 3954278 5931417 7908556 9885695 11862834 15817112 17794251 19771390 23725668 29657085 31634224 35588502 39542780 47451336 53382753 59314170 71177004 79085560 88971255 94902672 106765506 118628340 142354008 158171120 177942510 213531012 237256680 266913765 284708016 355885020 427062024 474513360 533827530 711770040 854124048 1067655060 1423540080 2135310120 4270620240