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137883648 = 212372229
BaseRepresentation
bin10000011011111…
…11000000000000
3100121110012210210
420031333000000
5240244234043
621403154120
73262664100
oct1015770000
9317405723
10137883648
1170917031
123a215940
1322748c76
1414453200
15c189633
hex837f000

137883648 has 156 divisors (see below), whose sum is σ = 429536040. Its totient is φ = 39223296.

The previous prime is 137883637. The next prime is 137883701. The reversal of 137883648 is 846388731.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 137883597 and 137883606.

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, 601998 + ... + 602226.

Almost surely, 2137883648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137883648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214768020).

137883648 is an abundant number, since it is smaller than the sum of its proper divisors (291652392).

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

137883648 is an equidigital number, since it uses as much as digits as its factorization.

137883648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 241 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 137883648 is about 11742.3868101847. The cubic root of 137883648 is about 516.6196509883.

It can be divided in two parts, 137 and 883648, that added together give a triangular number (883785 = T1329).

The spelling of 137883648 in words is "one hundred thirty-seven million, eight hundred eighty-three thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 128 147 168 192 196 224 229 256 294 336 384 392 448 458 512 588 672 687 768 784 896 916 1024 1176 1344 1374 1536 1568 1603 1792 1832 2048 2352 2688 2748 3072 3136 3206 3584 3664 4096 4704 4809 5376 5496 6144 6272 6412 7168 7328 9408 9618 10752 10992 11221 12288 12544 12824 14336 14656 18816 19236 21504 21984 22442 25088 25648 28672 29312 33663 37632 38472 43008 43968 44884 50176 51296 58624 67326 75264 76944 86016 87936 89768 100352 102592 117248 134652 150528 153888 175872 179536 200704 205184 234496 269304 301056 307776 351744 359072 410368 468992 538608 602112 615552 703488 718144 820736 937984 1077216 1231104 1406976 1436288 1641472 2154432 2462208 2813952 2872576 3282944 4308864 4924416 5745152 6565888 8617728 9848832 11490304 17235456 19697664 22980608 34470912 45961216 68941824 137883648