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78263076 = 2236521923
BaseRepresentation
bin1001010101000…
…11001100100100
312110021011202110
410222203030210
5130013404301
611433241020
71640140143
oct452431444
9173234673
1078263076
11401a5231
1222263170
13132a2918
14a57375a
156d0e0d6
hex4aa3324

78263076 has 12 divisors (see below), whose sum is σ = 182613872. Its totient is φ = 26087688.

The previous prime is 78263051. The next prime is 78263093. The reversal of 78263076 is 67036287.

78263076 is nontrivially palindromic in base 14 and base 15.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×782630762 = 12250218129963552, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3260950 + ... + 3260973.

Almost surely, 278263076 is an apocalyptic number.

It is an amenable number.

78263076 is an abundant number, since it is smaller than the sum of its proper divisors (104350796).

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

78263076 is a wasteful number, since it uses less digits than its factorization.

78263076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6521930 (or 6521928 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 78263076 is about 8846.6420748214. The cubic root of 78263076 is about 427.7456855269.

The spelling of 78263076 in words is "seventy-eight million, two hundred sixty-three thousand, seventy-six".

Divisors: 1 2 3 4 6 12 6521923 13043846 19565769 26087692 39131538 78263076