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201023458 = 2197372467
BaseRepresentation
bin10111111101101…
…01111111100010
3112000021001100021
423332311333202
5402430222313
631540344054
74660446136
oct1376657742
9460231307
10201023458
11a3521999
12573a502a
13328550bc
141c9ab3c6
15129ac78d
hexbfb5fe2

201023458 has 16 divisors (see below), whose sum is σ = 321757920. Its totient is φ = 93915936.

The previous prime is 201023441. The next prime is 201023461. The reversal of 201023458 is 854320102.

It is a super-3 number, since 3×2010234583 (a number of 26 digits) contains 333 as substring.

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, 33460 + ... + 39007.

It is an arithmetic number, because the mean of its divisors is an integer number (20109870).

Almost surely, 2201023458 is an apocalyptic number.

201023458 is a deficient number, since it is larger than the sum of its proper divisors (120734462).

201023458 is a wasteful number, since it uses less digits than its factorization.

201023458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72561.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 201023458 is about 14178.2741544943. The cubic root of 201023458 is about 585.7993873512.

The spelling of 201023458 in words is "two hundred one million, twenty-three thousand, four hundred fifty-eight".

Divisors: 1 2 19 38 73 146 1387 2774 72467 144934 1376873 2753746 5290091 10580182 100511729 201023458