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211053470 = 25171241491
BaseRepresentation
bin11001001010001…
…10101110011110
3112201010121221012
430211012232132
5413012202340
632535335222
75141632145
oct1445065636
9481117835
10211053470
11a9152661
125a821512
1334957514
142005c75c
15137de565
hexc946b9e

211053470 has 16 divisors (see below), whose sum is σ = 402243408. Its totient is φ = 79455360.

The previous prime is 211053449. The next prime is 211053517. The reversal of 211053470 is 74350112.

It is a congruent number.

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, 620576 + ... + 620915.

It is an arithmetic number, because the mean of its divisors is an integer number (25140213).

Almost surely, 2211053470 is an apocalyptic number.

211053470 is a deficient number, since it is larger than the sum of its proper divisors (191189938).

211053470 is a wasteful number, since it uses less digits than its factorization.

211053470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241515.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 211053470 is about 14527.6794430494. The cubic root of 211053470 is about 595.3844654057.

The spelling of 211053470 in words is "two hundred eleven million, fifty-three thousand, four hundred seventy".

Divisors: 1 2 5 10 17 34 85 170 1241491 2482982 6207455 12414910 21105347 42210694 105526735 211053470