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137980480 = 2651139199
BaseRepresentation
bin10000011100101…
…10101001000000
3100121122010122011
420032112221000
5240310333410
621405222304
73263546311
oct1016265100
9317563564
10137980480
1170982860
123a261994
1322781071
141447a608
15c1a818a
hex8396a40

137980480 has 56 divisors (see below), whose sum is σ = 358444800. Its totient is φ = 50173440.

The previous prime is 137980433. The next prime is 137980481. The reversal of 137980480 is 84089731.

It is a super-2 number, since 2×1379804802 = 38077225722060800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (137980481) 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, 16080 + ... + 23119.

It is an arithmetic number, because the mean of its divisors is an integer number (6400800).

Almost surely, 2137980480 is an apocalyptic number.

137980480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137980480 is an abundant number, since it is smaller than the sum of its proper divisors (220464320).

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

137980480 is a wasteful number, since it uses less digits than its factorization.

137980480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39227 (or 39217 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 137980480 is about 11746.5092687147. The cubic root of 137980480 is about 516.7405587460.

The spelling of 137980480 in words is "one hundred thirty-seven million, nine hundred eighty thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 160 176 220 320 352 440 704 880 1760 3520 39199 78398 156796 195995 313592 391990 431189 627184 783980 862378 1254368 1567960 1724756 2155945 2508736 3135920 3449512 4311890 6271840 6899024 8623780 12543680 13798048 17247560 27596096 34495120 68990240 137980480