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147031920 = 24325729173
BaseRepresentation
bin10001100001110…
…00011101110000
3101020122222212200
420300320131300
5300120010140
622331223200
73433515330
oct1060703560
9336588780
10147031920
1175aa5292
12412a7b00
13245ccc49
14157550c0
15cd95030
hex8c38770

147031920 has 120 divisors (see below), whose sum is σ = 564341856. Its totient is φ = 33606144.

The previous prime is 147031919. The next prime is 147031949. The reversal of 147031920 is 29130741.

147031920 is a `hidden beast` number, since 1 + 470 + 3 + 192 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

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, 9547 + ... + 19626.

Almost surely, 2147031920 is an apocalyptic number.

147031920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147031920 is an abundant number, since it is smaller than the sum of its proper divisors (417309936).

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

147031920 is a wasteful number, since it uses less digits than its factorization.

147031920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29199 (or 29190 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 147031920 is about 12125.6719401442. The cubic root of 147031920 is about 527.8014060295.

The spelling of 147031920 in words is "one hundred forty-seven million, thirty-one thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 35 36 40 42 45 48 56 60 63 70 72 80 84 90 105 112 120 126 140 144 168 180 210 240 252 280 315 336 360 420 504 560 630 720 840 1008 1260 1680 2520 5040 29173 58346 87519 116692 145865 175038 204211 233384 262557 291730 350076 408422 437595 466768 525114 583460 612633 700152 816844 875190 1021055 1050228 1166920 1225266 1312785 1400304 1633688 1750380 1837899 2042110 2100456 2333840 2450532 2625570 3063165 3267376 3500760 3675798 4084220 4200912 4901064 5251140 6126330 7001520 7351596 8168440 9189495 9802128 10502280 12252660 14703192 16336880 18378990 21004560 24505320 29406384 36757980 49010640 73515960 147031920