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147975620 = 22513569137
BaseRepresentation
bin10001101000111…
…10110111000100
3101022102221101112
420310132313010
5300340204440
622403344152
73444525542
oct1064366704
9338387345
10147975620
117658a301
1241682058
1324870650
141591cd92
15cece965
hex8d1edc4

147975620 has 24 divisors (see below), whose sum is σ = 334653144. Its totient is φ = 54637056.

The previous prime is 147975613. The next prime is 147975673. The reversal of 147975620 is 26579741.

147975620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2483776 + 145491844 = 1576^2 + 12062^2 .

It is a super-2 number, since 2×1479756202 = 43793568228768800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284309 + ... + 284828.

It is an arithmetic number, because the mean of its divisors is an integer number (13943881).

Almost surely, 2147975620 is an apocalyptic number.

147975620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147975620 is an abundant number, since it is smaller than the sum of its proper divisors (186677524).

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

147975620 is a wasteful number, since it uses less digits than its factorization.

147975620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569159 (or 569157 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 147975620 is about 12164.5230075001. The cubic root of 147975620 is about 528.9282006796.

The spelling of 147975620 in words is "one hundred forty-seven million, nine hundred seventy-five thousand, six hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 569137 1138274 2276548 2845685 5691370 7398781 11382740 14797562 29595124 36993905 73987810 147975620