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210524138 = 21131730187
BaseRepresentation
bin11001000110001…
…01011111101010
3112200010201211022
430203011133222
5412343233023
632520132442
75134265666
oct1443053752
9480121738
10210524138
11a89209a0
125a607122
13348005c6
141dd618a6
15137377c8
hexc8c57ea

210524138 has 16 divisors (see below), whose sum is σ = 345592224. Its totient is φ = 95387760.

The previous prime is 210524099. The next prime is 210524147. The reversal of 210524138 is 831425012.

210524138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 8120 + ... + 22067.

It is an arithmetic number, because the mean of its divisors is an integer number (21599514).

Almost surely, 2210524138 is an apocalyptic number.

210524138 is a deficient number, since it is larger than the sum of its proper divisors (135068086).

210524138 is a wasteful number, since it uses less digits than its factorization.

210524138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30517.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 210524138 is about 14509.4499551155. The cubic root of 210524138 is about 594.8862979778.

The spelling of 210524138 in words is "two hundred ten million, five hundred twenty-four thousand, one hundred thirty-eight".

Divisors: 1 2 11 22 317 634 3487 6974 30187 60374 332057 664114 9569279 19138558 105262069 210524138