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78872352 = 2531363199
BaseRepresentation
bin1001011001101…
…11111100100000
312111102010112020
410230313330200
5130142403402
611454301440
71645255356
oct454677440
9174363466
1078872352
1140580a69
12224b7880
1313457040
14a6917d6
156dce8bc
hex4b37f20

78872352 has 48 divisors (see below), whose sum is σ = 222969600. Its totient is φ = 24268032.

The previous prime is 78872351. The next prime is 78872369. The reversal of 78872352 is 25327887.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (78872351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30352 + ... + 32847.

It is an arithmetic number, because the mean of its divisors is an integer number (4645200).

Almost surely, 278872352 is an apocalyptic number.

It is an amenable number.

78872352 is an abundant number, since it is smaller than the sum of its proper divisors (144097248).

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

78872352 is a wasteful number, since it uses less digits than its factorization.

78872352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63225 (or 63217 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The square root of 78872352 is about 8881.0107532870. The cubic root of 78872352 is about 428.8528138149.

The spelling of 78872352 in words is "seventy-eight million, eight hundred seventy-two thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 312 416 624 1248 63199 126398 189597 252796 379194 505592 758388 821587 1011184 1516776 1643174 2022368 2464761 3033552 3286348 4929522 6067104 6572696 9859044 13145392 19718088 26290784 39436176 78872352