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102517428 = 22313250551
BaseRepresentation
bin1100001110001…
…00101010110100
321010220102110210
412013010222310
5202221024203
614101145420
72353245426
oct607045264
9233812423
10102517428
1152960952
122a3bb270
1318315600
14d888816
159000803
hex61c4ab4

102517428 has 36 divisors (see below), whose sum is σ = 259028448. Its totient is φ = 31543200.

The previous prime is 102517399. The next prime is 102517447. The reversal of 102517428 is 824715201.

102517428 = T177 + T178 + ... + T852.

It is a junction number, because it is equal to n+sod(n) for n = 102517395 and 102517404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23248 + ... + 27303.

Almost surely, 2102517428 is an apocalyptic number.

It is an amenable number.

102517428 is an abundant number, since it is smaller than the sum of its proper divisors (156511020).

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

102517428 is a wasteful number, since it uses less digits than its factorization.

102517428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50584 (or 50569 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 102517428 is about 10125.0890366456. The cubic root of 102517428 is about 468.0216039410.

The spelling of 102517428 in words is "one hundred two million, five hundred seventeen thousand, four hundred twenty-eight".