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149253170 = 25111971413
BaseRepresentation
bin10001110010101…
…10110000110010
3101101211211212012
420321112300302
5301202100140
622451002522
73461426303
oct1071266062
9341754765
10149253170
1177282130
1241b99442
1324bc9cb1
1415b727aa
15d183265
hex8e56c32

149253170 has 32 divisors (see below), whose sum is σ = 308508480. Its totient is φ = 51416640.

The previous prime is 149253157. The next prime is 149253179. The reversal of 149253170 is 71352941.

It is not an unprimeable number, because it can be changed into a prime (149253179) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33617 + ... + 37796.

It is an arithmetic number, because the mean of its divisors is an integer number (9640890).

Almost surely, 2149253170 is an apocalyptic number.

149253170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149253170 is an abundant number, since it is smaller than the sum of its proper divisors (159255310).

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

149253170 is a wasteful number, since it uses less digits than its factorization.

149253170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71450.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 149253170 is about 12216.9214616449. The cubic root of 149253170 is about 530.4460111771.

The spelling of 149253170 in words is "one hundred forty-nine million, two hundred fifty-three thousand, one hundred seventy".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 190 209 418 1045 2090 71413 142826 357065 714130 785543 1356847 1571086 2713694 3927715 6784235 7855430 13568470 14925317 29850634 74626585 149253170