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147420720 = 24325204751
BaseRepresentation
bin10001100100101…
…11011000110000
3101021101202012200
420302113120300
5300214430340
622343423200
73440025006
oct1062273060
9337352180
10147420720
1176240407
1241454b00
1324707bc5
1415816a76
15ce20330
hex8c97630

147420720 has 60 divisors (see below), whose sum is σ = 495090336. Its totient is φ = 39312000.

The previous prime is 147420709. The next prime is 147420737. The reversal of 147420720 is 27024741.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101656 + ... + 103095.

Almost surely, 2147420720 is an apocalyptic number.

147420720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147420720 is an abundant number, since it is smaller than the sum of its proper divisors (347669616).

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

147420720 is a wasteful number, since it uses less digits than its factorization.

147420720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204770 (or 204761 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 147420720 is about 12141.6934568453. The cubic root of 147420720 is about 528.2662224949.

The spelling of 147420720 in words is "one hundred forty-seven million, four hundred twenty thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 204751 409502 614253 819004 1023755 1228506 1638008 1842759 2047510 2457012 3071265 3276016 3685518 4095020 4914024 6142530 7371036 8190040 9213795 9828048 12285060 14742072 16380080 18427590 24570120 29484144 36855180 49140240 73710360 147420720