Search a number
-
+
57238700 = 2252572387
BaseRepresentation
bin1101101001011…
…0010010101100
310222201000201212
43122112102230
5104123114300
65402453552
71263343451
oct332262254
9128630655
1057238700
112a345312
12172042b8
13bb2116c
14785d828
155059935
hex36964ac

57238700 has 18 divisors (see below), whose sum is σ = 124208196. Its totient is φ = 22895440.

The previous prime is 57238693. The next prime is 57238717. The reversal of 57238700 is 783275.

57238700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 286094 + ... + 286293.

Almost surely, 257238700 is an apocalyptic number.

57238700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57238700 is an abundant number, since it is smaller than the sum of its proper divisors (66969496).

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

57238700 is a wasteful number, since it uses less digits than its factorization.

57238700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572401 (or 572394 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 57238700 is about 7565.6262133415. The cubic root of 57238700 is about 385.3865797145.

The spelling of 57238700 in words is "fifty-seven million, two hundred thirty-eight thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 572387 1144774 2289548 2861935 5723870 11447740 14309675 28619350 57238700