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149898924 = 2235722031
BaseRepresentation
bin10001110111101…
…00011010101100
3101110001122200000
420323310122230
5301333231144
622512504300
73500056050
oct1073643254
9343048600
10149898924
117768330a
124224b090
1325094bb6
1415c9dc60
15d25e769
hex8ef46ac

149898924 has 72 divisors (see below), whose sum is σ = 449100288. Its totient is φ = 42826320.

The previous prime is 149898841. The next prime is 149898937. The reversal of 149898924 is 429898941.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4212 + ... + 17819.

It is an arithmetic number, because the mean of its divisors is an integer number (6237504).

Almost surely, 2149898924 is an apocalyptic number.

149898924 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

149898924 is an abundant number, since it is smaller than the sum of its proper divisors (299201364).

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

149898924 is a wasteful number, since it uses less digits than its factorization.

149898924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22057 (or 22043 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 149898924 is about 12243.3216081258. The cubic root of 149898924 is about 531.2099141334.

The spelling of 149898924 in words is "one hundred forty-nine million, eight hundred ninety-eight thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 108 126 162 189 243 252 324 378 486 567 756 972 1134 1701 2268 3402 6804 22031 44062 66093 88124 132186 154217 198279 264372 308434 396558 462651 594837 616868 793116 925302 1189674 1387953 1784511 1850604 2379348 2775906 3569022 4163859 5353533 5551812 7138044 8327718 10707066 12491577 16655436 21414132 24983154 37474731 49966308 74949462 149898924