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57400761 = 3111739417
BaseRepresentation
bin1101101011110…
…1110110111001
311000000021001010
43122331312321
5104143311021
65410144133
71264620105
oct332756671
9130007033
1057400761
112a446050
1217282049
13bb79b62
1478a2905
15508c976
hex36bddb9

57400761 has 8 divisors (see below), whose sum is σ = 83492064. Its totient is φ = 34788320.

The previous prime is 57400753. The next prime is 57400769. The reversal of 57400761 is 16700475.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57400753) and next prime (57400769).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57400761 - 23 = 57400753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57400769) 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, 869676 + ... + 869741.

It is an arithmetic number, because the mean of its divisors is an integer number (10436508).

Almost surely, 257400761 is an apocalyptic number.

It is an amenable number.

57400761 is a deficient number, since it is larger than the sum of its proper divisors (26091303).

57400761 is a wasteful number, since it uses less digits than its factorization.

57400761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739431.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 57400761 is about 7576.3289923287. The cubic root of 57400761 is about 385.7499543930.

The spelling of 57400761 in words is "fifty-seven million, four hundred thousand, seven hundred sixty-one".

Divisors: 1 3 11 33 1739417 5218251 19133587 57400761