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57902040 = 2335572337
BaseRepresentation
bin1101110011100…
…0001111011000
311000221201200000
43130320033120
5104310331130
65425013000
71302105420
oct334701730
9130851600
1057902040
112a758729
1217484160
13bcc4081
147993480
15513b260
hex37383d8

57902040 has 384 divisors, whose sum is σ = 239016960. Its totient is φ = 12317184.

The previous prime is 57902027. The next prime is 57902041. The reversal of 57902040 is 4020975.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 57901995 and 57902013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57902041) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1564902 + ... + 1564938.

It is an arithmetic number, because the mean of its divisors is an integer number (622440).

Almost surely, 257902040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57902040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119508480).

57902040 is an abundant number, since it is smaller than the sum of its proper divisors (181114920).

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

57902040 is a wasteful number, since it uses less digits than its factorization.

57902040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 57902040 is about 7609.3389988881. The cubic root of 57902040 is about 386.8696153522.

The spelling of 57902040 in words is "fifty-seven million, nine hundred two thousand, forty".