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538530402 = 23149602383
BaseRepresentation
bin100000000110010…
…101001001100010
31101112100011211110
4200012111021202
52100330433102
6125234324150
716226301324
oct4006251142
91345304743
10538530402
11256a93953
12130429656
1387755a57
1451745614
153242986c
hex20195262

538530402 has 16 divisors (see below), whose sum is σ = 1084291200. Its totient is φ = 178305072.

The previous prime is 538530401. The next prime is 538530407. The reversal of 538530402 is 204035835.

It is a self number, because there is not a number n which added to its sum of digits gives 538530402.

It is not an unprimeable number, because it can be changed into a prime (538530401) 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, 300298 + ... + 302085.

It is an arithmetic number, because the mean of its divisors is an integer number (67768200).

Almost surely, 2538530402 is an apocalyptic number.

538530402 is an abundant number, since it is smaller than the sum of its proper divisors (545760798).

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

538530402 is a wasteful number, since it uses less digits than its factorization.

538530402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602537.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 538530402 is about 23206.2578198209. The cubic root of 538530402 is about 813.5858911020.

The spelling of 538530402 in words is "five hundred thirty-eight million, five hundred thirty thousand, four hundred two".

Divisors: 1 2 3 6 149 298 447 894 602383 1204766 1807149 3614298 89755067 179510134 269265201 538530402