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78468967 = 315094973
BaseRepresentation
bin1001010110101…
…01011101100111
312110122122012001
410223111131213
5130042001332
611441510131
71641655333
oct453253547
9173578161
1078468967
1140325995
1222342347
1313345555
14a5c87c3
156d500e7
hex4ad5767

78468967 has 8 divisors (see below), whose sum is σ = 81175680. Its totient is φ = 75773280.

The previous prime is 78468961. The next prime is 78468977. The reversal of 78468967 is 76986487.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78468967 - 23 = 78468959 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78468961) 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, 13293 + ... + 18265.

It is an arithmetic number, because the mean of its divisors is an integer number (10146960).

Almost surely, 278468967 is an apocalyptic number.

78468967 is a deficient number, since it is larger than the sum of its proper divisors (2706713).

78468967 is a wasteful number, since it uses less digits than its factorization.

78468967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5513.

The product of its digits is 4064256, while the sum is 55.

The square root of 78468967 is about 8858.2711067115. The cubic root of 78468967 is about 428.1204551492.

It can be divided in two parts, 784 and 68967, that added together give a triangular number (69751 = T373).

The spelling of 78468967 in words is "seventy-eight million, four hundred sixty-eight thousand, nine hundred sixty-seven".

Divisors: 1 31 509 4973 15779 154163 2531257 78468967