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53379972 = 2234672459
BaseRepresentation
bin1100101110100…
…0001110000100
310201102222120000
43023220032010
5102131124342
65144041300
71215502512
oct313501604
9121388500
1053379972
112814a188
1215a63230
13b09c9a9
1471374b2
154a4644c
hex32e8384

53379972 has 60 divisors (see below), whose sum is σ = 141686160. Its totient is φ = 17520624.

The previous prime is 53379967. The next prime is 53379979. The reversal of 53379972 is 27997335.

It is not an unprimeable number, because it can be changed into a prime (53379979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20479 + ... + 22937.

It is an arithmetic number, because the mean of its divisors is an integer number (2361436).

Almost surely, 253379972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53379972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70843080).

53379972 is an abundant number, since it is smaller than the sum of its proper divisors (88306188).

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

53379972 is a wasteful number, since it uses less digits than its factorization.

53379972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542 (or 2531 counting only the distinct ones).

The product of its digits is 357210, while the sum is 45.

The square root of 53379972 is about 7306.1598668521. The cubic root of 53379972 is about 376.5241012492.

The spelling of 53379972 in words is "fifty-three million, three hundred seventy-nine thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 67 81 108 134 162 201 268 324 402 603 804 1206 1809 2412 2459 3618 4918 5427 7236 7377 9836 10854 14754 21708 22131 29508 44262 66393 88524 132786 164753 199179 265572 329506 398358 494259 659012 796716 988518 1482777 1977036 2965554 4448331 5931108 8896662 13344993 17793324 26689986 53379972