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137276680 = 23531149743
BaseRepresentation
bin10000010111010…
…10110100001000
3100120022101012111
420023222310020
5240120323210
621342152104
73254555362
oct1013526410
9316271174
10137276680
1170542002
1239b82634
1322595908
1414335d32
15c0b988a
hex82ead08

137276680 has 64 divisors (see below), whose sum is σ = 321408000. Its totient is φ = 52711680.

The previous prime is 137276663. The next prime is 137276687. The reversal of 137276680 is 86672731.

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 (137276687) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 184389 + ... + 185131.

It is an arithmetic number, because the mean of its divisors is an integer number (5022000).

Almost surely, 2137276680 is an apocalyptic number.

137276680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137276680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160704000).

137276680 is an abundant number, since it is smaller than the sum of its proper divisors (184131320).

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

137276680 is a wasteful number, since it uses less digits than its factorization.

137276680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 137276680 is about 11716.5131331809. The cubic root of 137276680 is about 515.8604774710.

The spelling of 137276680 in words is "one hundred thirty-seven million, two hundred seventy-six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 149 155 248 298 310 596 620 743 745 1192 1240 1486 1490 2972 2980 3715 4619 5944 5960 7430 9238 14860 18476 23033 23095 29720 36952 46066 46190 92132 92380 110707 115165 184264 184760 221414 230330 442828 460660 553535 885656 921320 1107070 2214140 3431917 4428280 6863834 13727668 17159585 27455336 34319170 68638340 137276680