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78468044 = 2219617011
BaseRepresentation
bin1001010110101…
…01001111001100
312110122120220212
410223111033030
5130041434134
611441501552
71641652544
oct453251714
9173576825
1078468044
1140325226
12223418b8
1313344cc5
14a5c8324
156d4ebce
hex4ad53cc

78468044 has 6 divisors (see below), whose sum is σ = 137319084. Its totient is φ = 39234020.

The previous prime is 78468041. The next prime is 78468059. The reversal of 78468044 is 44086487.

It is a junction number, because it is equal to n+sod(n) for n = 78467992 and 78468010.

It is not an unprimeable number, because it can be changed into a prime (78468041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9808502 + ... + 9808509.

It is an arithmetic number, because the mean of its divisors is an integer number (22886514).

Almost surely, 278468044 is an apocalyptic number.

It is an amenable number.

78468044 is a deficient number, since it is larger than the sum of its proper divisors (58851040).

78468044 is a wasteful number, since it uses less digits than its factorization.

78468044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19617015 (or 19617013 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 78468044 is about 8858.2190083560. The cubic root of 78468044 is about 428.1187765377.

The spelling of 78468044 in words is "seventy-eight million, four hundred sixty-eight thousand, forty-four".

Divisors: 1 2 4 19617011 39234022 78468044