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131868048 = 243131731401
BaseRepresentation
bin1111101110000…
…10010110010000
3100012010120221210
413313002112100
5232224234143
621030220120
73160600644
oct767022620
9305116853
10131868048
1168488464
12381b4640
1321420b40
1413728c24
15b89c033
hex7dc2590

131868048 has 160 divisors (see below), whose sum is σ = 401974272. Its totient is φ = 36864000.

The previous prime is 131868029. The next prime is 131868067. The reversal of 131868048 is 840868131.

131868048 = T467 + T468 + ... + T962.

It is an interprime number because it is at equal distance from previous prime (131868029) and next prime (131868067).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 131867997 and 131868015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 328648 + ... + 329048.

Almost surely, 2131868048 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 131868048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200987136).

131868048 is an abundant number, since it is smaller than the sum of its proper divisors (270106224).

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

131868048 is a wasteful number, since it uses less digits than its factorization.

131868048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 131868048 is about 11483.3813835473. The cubic root of 131868048 is about 508.9946206731.

The spelling of 131868048 in words is "one hundred thirty-one million, eight hundred sixty-eight thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 17 24 26 31 34 39 48 51 52 62 68 78 93 102 104 124 136 156 186 204 208 221 248 272 312 372 401 403 408 442 496 527 624 663 744 802 806 816 884 1054 1203 1209 1326 1488 1581 1604 1612 1768 2108 2406 2418 2652 3162 3208 3224 3536 4216 4812 4836 5213 5304 6324 6416 6448 6817 6851 8432 9624 9672 10426 10608 12431 12648 13634 13702 15639 19248 19344 20451 20553 20852 24862 25296 27268 27404 31278 37293 40902 41106 41704 49724 54536 54808 62556 74586 81804 82212 83408 88621 99448 109072 109616 125112 149172 161603 163608 164424 177242 198896 211327 250224 265863 298344 323206 327216 328848 354484 422654 484809 531726 596688 633981 646412 708968 845308 969618 1063452 1267962 1292824 1417936 1690616 1939236 2126904 2535924 2585648 2747251 3381232 3878472 4253808 5071848 5494502 7756944 8241753 10143696 10989004 16483506 21978008 32967012 43956016 65934024 131868048