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53315970 = 2353157329
BaseRepresentation
bin1100101101100…
…0100110000010
310201022201202120
43023120212002
5102122102340
65142425110
71215115101
oct313304602
9121281676
1053315970
1128106094
1215a32196
13b079816
14711c038
154a324d0
hex32d8982

53315970 has 32 divisors (see below), whose sum is σ = 132088320. Its totient is φ = 13758720.

The previous prime is 53315947. The next prime is 53315971. The reversal of 53315970 is 7951335.

It is not an unprimeable number, because it can be changed into a prime (53315971) 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 15 ways as a sum of consecutive naturals, for example, 27735 + ... + 29594.

It is an arithmetic number, because the mean of its divisors is an integer number (4127760).

Almost surely, 253315970 is an apocalyptic number.

53315970 is an abundant number, since it is smaller than the sum of its proper divisors (78772350).

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

53315970 is a wasteful number, since it uses less digits than its factorization.

53315970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57370.

The product of its (nonzero) digits is 14175, while the sum is 33.

The square root of 53315970 is about 7301.7785504629. The cubic root of 53315970 is about 376.3735583130.

It can be divided in two parts, 53315 and 970, that added together give a triangular number (54285 = T329).

The spelling of 53315970 in words is "fifty-three million, three hundred fifteen thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 57329 114658 171987 286645 343974 573290 859935 1719870 1777199 3554398 5331597 8885995 10663194 17771990 26657985 53315970