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53872572 = 223131512287
BaseRepresentation
bin1100110110000…
…0011110111100
310202101000021110
43031200132330
5102242410242
65202402020
71222623615
oct315403674
9122330243
1053872572
1128456296
1216060310
13b212c80
147224c0c
154ae239c
hex33607bc

53872572 has 48 divisors (see below), whose sum is σ = 136328192. Its totient is φ = 16459200.

The previous prime is 53872547. The next prime is 53872607. The reversal of 53872572 is 27527835.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 53872572.

It is a congruent number.

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, 22413 + ... + 24699.

Almost surely, 253872572 is an apocalyptic number.

53872572 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53872572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68164096).

53872572 is an abundant number, since it is smaller than the sum of its proper divisors (82455620).

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

53872572 is a wasteful number, since it uses less digits than its factorization.

53872572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458 (or 2456 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The square root of 53872572 is about 7339.7937300717. The cubic root of 53872572 is about 377.6787674274.

The spelling of 53872572 in words is "fifty-three million, eight hundred seventy-two thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 151 156 302 453 604 906 1812 1963 2287 3926 4574 5889 6861 7852 9148 11778 13722 23556 27444 29731 59462 89193 118924 178386 345337 356772 690674 1036011 1381348 2072022 4144044 4489381 8978762 13468143 17957524 26936286 53872572