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48638836 = 221723137227
BaseRepresentation
bin1011100110001…
…0101101110100
310101112002221101
42321202231310
544422420321
64454255444
71130265121
oct271425564
9111462841
1048638836
1125501094
1214357584
13a0cc99c
146661748
15440b791
hex2e62b74

48638836 has 48 divisors (see below), whose sum is σ = 95147136. Its totient is φ = 21638144.

The previous prime is 48638801. The next prime is 48638839. The reversal of 48638836 is 63883684.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48638839) 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, 214155 + ... + 214381.

It is an arithmetic number, because the mean of its divisors is an integer number (1982232).

Almost surely, 248638836 is an apocalyptic number.

48638836 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

48638836 is a deficient number, since it is larger than the sum of its proper divisors (46508300).

48638836 is a wasteful number, since it uses less digits than its factorization.

48638836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 406 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The square root of 48638836 is about 6974.1548591926. The cubic root of 48638836 is about 365.0292989554.

The spelling of 48638836 in words is "forty-eight million, six hundred thirty-eight thousand, eight hundred thirty-six".

Divisors: 1 2 4 17 23 34 46 68 92 137 227 274 391 454 548 782 908 1564 2329 3151 3859 4658 5221 6302 7718 9316 10442 12604 15436 20884 31099 53567 62198 88757 107134 124396 177514 214268 355028 528683 715277 1057366 1430554 2114732 2861108 12159709 24319418 48638836