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13730681670 = 235457689389
BaseRepresentation
bin11001100100110100…
…11001001101000110
31022102220200220021120
430302122121031012
5211110023303140
610150252054410
7664154603616
oct146232311506
938386626246
1013730681670
115906680402
1227b2464406
1313aa894414
1494380ca46
155556851d0
hex332699346

13730681670 has 16 divisors (see below), whose sum is σ = 32953636080. Its totient is φ = 3661515104.

The previous prime is 13730681633. The next prime is 13730681677. The reversal of 13730681670 is 7618603731.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13730681677) 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, 228844665 + ... + 228844724.

It is an arithmetic number, because the mean of its divisors is an integer number (2059602255).

Almost surely, 213730681670 is an apocalyptic number.

13730681670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13730681670 is an abundant number, since it is smaller than the sum of its proper divisors (19222954410).

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

13730681670 is a wasteful number, since it uses less digits than its factorization.

13730681670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457689399.

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 13730681670 in words is "thirteen billion, seven hundred thirty million, six hundred eighty-one thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 457689389 915378778 1373068167 2288446945 2746136334 4576893890 6865340835 13730681670