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18428761496 = 233316169467
BaseRepresentation
bin10001001010011100…
…001001010110011000
31202120022222002020002
4101022130021112120
5300220230331441
612244400152132
71221452613425
oct211234112630
952508862202
1018428761496
1178a7612302
1236a3908648
131979002202
14c6b75ad4c
1572cd4db9b
hex44a709598

18428761496 has 16 divisors (see below), whose sum is σ = 34555467240. Its totient is φ = 9213970240.

The previous prime is 18428761471. The next prime is 18428761513. The reversal of 18428761496 is 69416782481.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230555 + ... + 300021.

Almost surely, 218428761496 is an apocalyptic number.

It is an amenable number.

18428761496 is a deficient number, since it is larger than the sum of its proper divisors (16126705744).

18428761496 is a wasteful number, since it uses less digits than its factorization.

18428761496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102634 (or 102630 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 56.

The spelling of 18428761496 in words is "eighteen billion, four hundred twenty-eight million, seven hundred sixty-one thousand, four hundred ninety-six".

Divisors: 1 2 4 8 33161 66322 69467 132644 138934 265288 277868 555736 2303595187 4607190374 9214380748 18428761496