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23031213000 = 233537677071
BaseRepresentation
bin10101011100110001…
…000110101111001000
32012110002021211202220
4111130301012233020
5334131442304000
614325210454040
71443510036405
oct253461065710
965402254686
1023031213000
119849579234
124569134320
13223069a2b3
141186ad52ac
158ebe281a0
hex55cc46bc8

23031213000 has 64 divisors (see below), whose sum is σ = 71857393920. Its totient is φ = 6141656000.

The previous prime is 23031212999. The next prime is 23031213019. The reversal of 23031213000 is 31213032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3835536 + ... + 3841535.

It is an arithmetic number, because the mean of its divisors is an integer number (1122771780).

Almost surely, 223031213000 is an apocalyptic number.

23031213000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23031213000 is an abundant number, since it is smaller than the sum of its proper divisors (48826180920).

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

23031213000 is a wasteful number, since it uses less digits than its factorization.

23031213000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677095 (or 7677081 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 23031213000 its reverse (31213032), we get a palindrome (23062426032).

The spelling of 23031213000 in words is "twenty-three billion, thirty-one million, two hundred thirteen thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 125 150 200 250 300 375 500 600 750 1000 1500 3000 7677071 15354142 23031213 30708284 38385355 46062426 61416568 76770710 92124852 115156065 153541420 184249704 191926775 230312130 307082840 383853550 460624260 575780325 767707100 921248520 959633875 1151560650 1535414200 1919267750 2303121300 2878901625 3838535500 4606242600 5757803250 7677071000 11515606500 23031213000