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147979674 = 23213815953
BaseRepresentation
bin10001101000111…
…11110110011010
3101022110010221200
420310133312122
5300340322144
622403415030
73444543423
oct1064376632
9338403850
10147979674
1176592357
1241684476
132487244b
141592064a
15ced0c69
hex8d1fd9a

147979674 has 24 divisors (see below), whose sum is σ = 320908692. Its totient is φ = 49282560.

The previous prime is 147979673. The next prime is 147979681. The reversal of 147979674 is 476979741.

It can be written as a sum of positive squares in 2 ways, for example, as 128663649 + 19316025 = 11343^2 + 4395^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 147979674.

It is not an unprimeable number, because it can be changed into a prime (147979673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21882 + ... + 27834.

Almost surely, 2147979674 is an apocalyptic number.

147979674 is an abundant number, since it is smaller than the sum of its proper divisors (172929018).

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

147979674 is a wasteful number, since it uses less digits than its factorization.

147979674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7342 (or 7339 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 147979674 is about 12164.6896384577. The cubic root of 147979674 is about 528.9330308792.

The spelling of 147979674 in words is "one hundred forty-seven million, nine hundred seventy-nine thousand, six hundred seventy-four".

Divisors: 1 2 3 6 9 18 1381 2762 4143 5953 8286 11906 12429 17859 24858 35718 53577 107154 8221093 16442186 24663279 49326558 73989837 147979674