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14642490 = 2352321221
BaseRepresentation
bin110111110110…
…110100111010
31000112220201110
4313312310322
512222024430
61241501150
7235313322
oct67666472
930486643
1014642490
1182a1135
124aa17b6
1330589c5
141d32282
1514437b0
hexdf6d3a

14642490 has 32 divisors (see below), whose sum is σ = 36671616. Its totient is φ = 3734720.

The previous prime is 14642471. The next prime is 14642519. The reversal of 14642490 is 9424641.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9921 + ... + 11300.

It is an arithmetic number, because the mean of its divisors is an integer number (1145988).

Almost surely, 214642490 is an apocalyptic number.

14642490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14642490 is an abundant number, since it is smaller than the sum of its proper divisors (22029126).

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

14642490 is a wasteful number, since it uses less digits than its factorization.

14642490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21254.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 14642490 is about 3826.5506660699. The cubic root of 14642490 is about 244.6461085299.

The spelling of 14642490 in words is "fourteen million, six hundred forty-two thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 21221 42442 63663 106105 127326 212210 318315 488083 636630 976166 1464249 2440415 2928498 4880830 7321245 14642490