Search a number
-
+
57512493612 = 223371919120963
BaseRepresentation
bin110101100100000000…
…110000001000101100
312111110010220101111000
4311210000300020230
51420241144243422
642230524200300
74104133062330
oct654400601054
9174403811430
1057512493612
1122433337762
12b190999090
1355672b3612
142ad83757c0
151769193cac
hexd6403022c

57512493612 has 192 divisors, whose sum is σ = 180323942400. Its totient is φ = 15485048640.

The previous prime is 57512493601. The next prime is 57512493683. The reversal of 57512493612 is 21639421575.

57512493612 is a `hidden beast` number, since 5 + 7 + 5 + 1 + 24 + 9 + 3 + 612 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2733043 + ... + 2754005.

It is an arithmetic number, because the mean of its divisors is an integer number (939187200).

Almost surely, 257512493612 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 57512493612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90161971200).

57512493612 is an abundant number, since it is smaller than the sum of its proper divisors (122811448788).

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

57512493612 is a wasteful number, since it uses less digits than its factorization.

57512493612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21193 (or 21185 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The spelling of 57512493612 in words is "fifty-seven billion, five hundred twelve million, four hundred ninety-three thousand, six hundred twelve".