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151688040 = 23357892029
BaseRepresentation
bin10010000101010…
…01001101101000
3101120102112212120
421002221031220
5302313004130
623015111240
73521220120
oct1102511550
9346375776
10151688040
1178695519
1242972520
132557034a
1416207c80
15d4b4910
hex90a9368

151688040 has 128 divisors (see below), whose sum is σ = 526176000. Its totient is φ = 34265088.

The previous prime is 151688027. The next prime is 151688063. The reversal of 151688040 is 40886151.

It is a super-2 number, since 2×1516880402 = 46018522958083200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 151687992 and 151688010.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 73746 + ... + 75774.

It is an arithmetic number, because the mean of its divisors is an integer number (4110750).

Almost surely, 2151688040 is an apocalyptic number.

151688040 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 151688040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263088000).

151688040 is an abundant number, since it is smaller than the sum of its proper divisors (374487960).

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

151688040 is a wasteful number, since it uses less digits than its factorization.

151688040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139 (or 2135 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 151688040 is about 12316.1698591729. The cubic root of 151688040 is about 533.3149767988.

The spelling of 151688040 in words is "one hundred fifty-one million, six hundred eighty-eight thousand, forty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 89 105 120 140 168 178 210 267 280 356 420 445 534 623 712 840 890 1068 1246 1335 1780 1869 2029 2136 2492 2670 3115 3560 3738 4058 4984 5340 6087 6230 7476 8116 9345 10145 10680 12174 12460 14203 14952 16232 18690 20290 24348 24920 28406 30435 37380 40580 42609 48696 56812 60870 71015 74760 81160 85218 113624 121740 142030 170436 180581 213045 243480 284060 340872 361162 426090 541743 568120 722324 852180 902905 1083486 1264067 1444648 1704360 1805810 2166972 2528134 2708715 3611620 3792201 4333944 5056268 5417430 6320335 7223240 7584402 10112536 10834860 12640670 15168804 18961005 21669720 25281340 30337608 37922010 50562680 75844020 151688040