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52134405 = 3531191587
BaseRepresentation
bin1100011011100…
…0001000000101
310122002200221220
43012320020011
5101321300110
65101230553
71202064231
oct306701005
9118080856
1052134405
1127479394
1215562459
13aa54a7b
146cd15c1
15489c370
hex31b8205

52134405 has 32 divisors (see below), whose sum is σ = 86704128. Its totient is φ = 26721600.

The previous prime is 52134403. The next prime is 52134413. The reversal of 52134405 is 50443125.

It is not a de Polignac number, because 52134405 - 21 = 52134403 is a prime.

It is a super-3 number, since 3×521344053 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52134403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88522 + ... + 89108.

It is an arithmetic number, because the mean of its divisors is an integer number (2709504).

Almost surely, 252134405 is an apocalyptic number.

It is an amenable number.

52134405 is a deficient number, since it is larger than the sum of its proper divisors (34569723).

52134405 is a wasteful number, since it uses less digits than its factorization.

52134405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 52134405 is about 7220.4158467501. The cubic root of 52134405 is about 373.5724211683.

The spelling of 52134405 in words is "fifty-two million, one hundred thirty-four thousand, four hundred five".

Divisors: 1 3 5 15 31 93 155 191 465 573 587 955 1761 2865 2935 5921 8805 17763 18197 29605 54591 88815 90985 112117 272955 336351 560585 1681755 3475627 10426881 17378135 52134405