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117972452 = 2213171131181
BaseRepresentation
bin1110000100000…
…01110111100100
322012222121210002
413002001313210
5220200104302
615412320432
72631515003
oct702016744
9265877702
10117972452
11606574a4
1233613118
131b5970b0
141194cc3a
15a554c02
hex7081de4

117972452 has 48 divisors (see below), whose sum is σ = 237695472. Its totient is φ = 50749440.

The previous prime is 117972433. The next prime is 117972473. The reversal of 117972452 is 254279711.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1893376 + 116079076 = 1376^2 + 10774^2 .

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, 99302 + ... + 100482.

It is an arithmetic number, because the mean of its divisors is an integer number (4951989).

Almost surely, 2117972452 is an apocalyptic number.

It is an amenable number.

117972452 is an abundant number, since it is smaller than the sum of its proper divisors (119723020).

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

117972452 is a wasteful number, since it uses less digits than its factorization.

117972452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328 (or 1326 counting only the distinct ones).

The product of its digits is 35280, while the sum is 38.

The square root of 117972452 is about 10861.5124177068. The cubic root of 117972452 is about 490.4486408859.

The spelling of 117972452 in words is "one hundred seventeen million, nine hundred seventy-two thousand, four hundred fifty-two".

Divisors: 1 2 4 13 17 26 34 52 68 113 221 226 442 452 884 1181 1469 1921 2362 2938 3842 4724 5876 7684 15353 20077 24973 30706 40154 49946 61412 80308 99892 133453 261001 266906 522002 533812 1044004 1734889 2268701 3469778 4537402 6939556 9074804 29493113 58986226 117972452