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49283988 = 22313431733
BaseRepresentation
bin1011110000000…
…0001110010100
310102201212220220
42330000032110
5100104041423
64520154340
71135623045
oct274001624
9112655826
1049283988
1125901876
12146089b0
13a297530
14678c8cc
1544d79e3
hex2f00394

49283988 has 48 divisors (see below), whose sum is σ = 124298496. Its totient is φ = 15108480.

The previous prime is 49283987. The next prime is 49283999. The reversal of 49283988 is 88938294.

It is a happy number.

It is a super-2 number, since 2×492839882 = 4857822946368288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49283988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49283981) 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, 66870 + ... + 67602.

It is an arithmetic number, because the mean of its divisors is an integer number (2589552).

Almost surely, 249283988 is an apocalyptic number.

It is an amenable number.

49283988 is an abundant number, since it is smaller than the sum of its proper divisors (75014508).

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

49283988 is a wasteful number, since it uses less digits than its factorization.

49283988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184 (or 1182 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 49283988 is about 7020.2555509041. The cubic root of 49283988 is about 366.6361476894.

The spelling of 49283988 in words is "forty-nine million, two hundred eighty-three thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 431 733 862 1293 1466 1724 2199 2586 2932 4398 5172 5603 8796 9529 11206 16809 19058 22412 28587 33618 38116 57174 67236 114348 315923 631846 947769 1263692 1895538 3791076 4106999 8213998 12320997 16427996 24641994 49283988