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149678808 = 23319328243
BaseRepresentation
bin10001110101111…
…10101011011000
3101102122110201120
420322332223120
5301304210213
622504045240
73465151236
oct1072765330
9342573646
10149678808
11775429a4
1242163820
1325018956
1415c43956
15d219423
hex8ebead8

149678808 has 32 divisors (see below), whose sum is σ = 393892800. Its totient is φ = 47266848.

The previous prime is 149678803. The next prime is 149678821. The reversal of 149678808 is 808876941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149678803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163666 + ... + 164577.

It is an arithmetic number, because the mean of its divisors is an integer number (12309150).

Almost surely, 2149678808 is an apocalyptic number.

It is an amenable number.

149678808 is an abundant number, since it is smaller than the sum of its proper divisors (244213992).

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

149678808 is a wasteful number, since it uses less digits than its factorization.

149678808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328271 (or 328267 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 149678808 is about 12234.3290784579. The cubic root of 149678808 is about 530.9497719912.

The spelling of 149678808 in words is "one hundred forty-nine million, six hundred seventy-eight thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 328243 656486 984729 1312972 1969458 2625944 3938916 6236617 7877832 12473234 18709851 24946468 37419702 49892936 74839404 149678808