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79988288 = 261249817
BaseRepresentation
bin1001100010010…
…00011001000000
312120111211022012
410301020121000
5130434111123
611534232052
71660614002
oct461103100
9176454265
1079988288
1141173426
1222955628
1313757c63
14a8a2372
157050378
hex4c48640

79988288 has 14 divisors (see below), whose sum is σ = 158726886. Its totient is φ = 39994112.

The previous prime is 79988287. The next prime is 79988291. The reversal of 79988288 is 88288997.

It can be written as a sum of positive squares in only one way, i.e., 76177984 + 3810304 = 8728^2 + 1952^2 .

It is not an unprimeable number, because it can be changed into a prime (79988287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624845 + ... + 624972.

Almost surely, 279988288 is an apocalyptic number.

It is an amenable number.

79988288 is a deficient number, since it is larger than the sum of its proper divisors (78738598).

79988288 is a wasteful number, since it uses less digits than its factorization.

79988288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249829 (or 1249819 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 59.

The square root of 79988288 is about 8943.6171653308. The cubic root of 79988288 is about 430.8659096976.

The spelling of 79988288 in words is "seventy-nine million, nine hundred eighty-eight thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 16 32 64 1249817 2499634 4999268 9998536 19997072 39994144 79988288