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78514468 = 22128315299
BaseRepresentation
bin1001010111000…
…00100100100100
312110201221121021
410223200210210
5130044430333
611442500524
71642235104
oct453404444
9173657537
1078514468
114035709a
1222364744
1313360186
14a5db204
156d5d82d
hex4ae0924

78514468 has 12 divisors (see below), whose sum is σ = 137516400. Its totient is φ = 39224072.

The previous prime is 78514463. The next prime is 78514477. The reversal of 78514468 is 86441587.

It is not an unprimeable number, because it can be changed into a prime (78514463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2518 + ... + 12781.

It is an arithmetic number, because the mean of its divisors is an integer number (11459700).

Almost surely, 278514468 is an apocalyptic number.

It is an amenable number.

78514468 is a deficient number, since it is larger than the sum of its proper divisors (59001932).

78514468 is a wasteful number, since it uses less digits than its factorization.

78514468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16586 (or 16584 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 78514468 is about 8860.8390121929. The cubic root of 78514468 is about 428.2031891079.

The spelling of 78514468 in words is "seventy-eight million, five hundred fourteen thousand, four hundred sixty-eight".

Divisors: 1 2 4 1283 2566 5132 15299 30598 61196 19628617 39257234 78514468