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52408518 = 2317975297
BaseRepresentation
bin1100011111101…
…1000011000110
310122121121222020
43013323003012
5101404033033
65111144010
71204315341
oct307730306
9118547866
1052408518
1127646328
1215675006
13ab1c776
146d63458
1549036b3
hex31fb0c6

52408518 has 32 divisors (see below), whose sum is σ = 112148064. Its totient is φ = 16269312.

The previous prime is 52408511. The next prime is 52408519. The reversal of 52408518 is 81580425.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52408511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7246 + ... + 12542.

It is an arithmetic number, because the mean of its divisors is an integer number (3504627).

Almost surely, 252408518 is an apocalyptic number.

52408518 is an abundant number, since it is smaller than the sum of its proper divisors (59739546).

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

52408518 is a wasteful number, since it uses less digits than its factorization.

52408518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 52408518 is about 7239.3727628849. The cubic root of 52408518 is about 374.2260017927.

The spelling of 52408518 in words is "fifty-two million, four hundred eight thousand, five hundred eighteen".

Divisors: 1 2 3 6 17 34 51 97 102 194 291 582 1649 3298 4947 5297 9894 10594 15891 31782 90049 180098 270147 513809 540294 1027618 1541427 3082854 8734753 17469506 26204259 52408518