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146972539 = 7183111467
BaseRepresentation
bin10001100001010…
…01111101111011
3101020112222102101
420300221331323
5300111110124
622330044231
73433150240
oct1060517573
9336488371
10146972539
1175a6470a
1241279677
13245abbcc
141573b5c7
15cd82644
hex8c29f7b

146972539 has 8 divisors (see below), whose sum is σ = 168075008. Its totient is φ = 125896680.

The previous prime is 146972533. The next prime is 146972549. The reversal of 146972539 is 935279641.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 146972539 - 27 = 146972411 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (146972533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7084 + ... + 18550.

It is an arithmetic number, because the mean of its divisors is an integer number (21009376).

Almost surely, 2146972539 is an apocalyptic number.

146972539 is a deficient number, since it is larger than the sum of its proper divisors (21102469).

146972539 is a wasteful number, since it uses less digits than its factorization.

146972539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13305.

The product of its digits is 408240, while the sum is 46.

The square root of 146972539 is about 12123.2231275350. The cubic root of 146972539 is about 527.7303430125.

The spelling of 146972539 in words is "one hundred forty-six million, nine hundred seventy-two thousand, five hundred thirty-nine".

Divisors: 1 7 1831 11467 12817 80269 20996077 146972539