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202100970 = 23531321523
BaseRepresentation
bin11000000101111…
…01000011101010
3112002021210102010
430002331003222
5403214212340
632015420350
75002554441
oct1402750352
9462253363
10202100970
11a40984a5
12578246b6
1332b41696
141cbabd58
1512b21b80
hexc0bd0ea

202100970 has 32 divisors (see below), whose sum is σ = 486614592. Its totient is φ = 53718912.

The previous prime is 202100963. The next prime is 202100999. The reversal of 202100970 is 79001202.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1372 + ... + 20151.

It is an arithmetic number, because the mean of its divisors is an integer number (15206706).

Almost surely, 2202100970 is an apocalyptic number.

202100970 is an abundant number, since it is smaller than the sum of its proper divisors (284513622).

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

202100970 is a wasteful number, since it uses less digits than its factorization.

202100970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21846.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 202100970 is about 14216.2220719852. Note that the first 3 decimals coincide. The cubic root of 202100970 is about 586.8441765849.

The spelling of 202100970 in words is "two hundred two million, one hundred thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 313 626 939 1565 1878 3130 4695 9390 21523 43046 64569 107615 129138 215230 322845 645690 6736699 13473398 20210097 33683495 40420194 67366990 101050485 202100970