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52740555 = 3574112251
BaseRepresentation
bin1100100100110…
…0000111001011
310200020111102220
43021030013023
5102000144210
65122225123
71210200360
oct311140713
9120214386
1052740555
112785283a
12157b51a3
13ac0793a
14700c467
15496bc70
hex324c1cb

52740555 has 32 divisors (see below), whose sum is σ = 98800128. Its totient is φ = 23520000.

The previous prime is 52740553. The next prime is 52740557. The reversal of 52740555 is 55504725.

It is an interprime number because it is at equal distance from previous prime (52740553) and next prime (52740557).

It is not a de Polignac number, because 52740555 - 21 = 52740553 is a prime.

It is a super-2 number, since 2×527405552 = 5563132283416050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52740551) 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, 1821 + ... + 10430.

It is an arithmetic number, because the mean of its divisors is an integer number (3087504).

Almost surely, 252740555 is an apocalyptic number.

52740555 is a deficient number, since it is larger than the sum of its proper divisors (46059573).

52740555 is a wasteful number, since it uses less digits than its factorization.

52740555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12307.

The product of its (nonzero) digits is 35000, while the sum is 33.

The square root of 52740555 is about 7262.2692734434. The cubic root of 52740555 is about 375.0146483167.

The spelling of 52740555 in words is "fifty-two million, seven hundred forty thousand, five hundred fifty-five".

Divisors: 1 3 5 7 15 21 35 41 105 123 205 287 615 861 1435 4305 12251 36753 61255 85757 183765 257271 428785 502291 1286355 1506873 2511455 3516037 7534365 10548111 17580185 52740555