Search a number
-
+
93139156530 = 2355719972971
BaseRepresentation
bin101011010111110000…
…1101011111000110010
322220102000202101100000
41112233201223320302
53011222111002110
6110442035210430
76505034524260
oct1265741537062
9286360671300
1093139156530
1136555697932
1216074146a16
138a242a9c54
144717ba9430
152651c5c1c0
hex15af86be32

93139156530 has 384 divisors, whose sum is σ = 305329489920. Its totient is φ = 19953838080.

The previous prime is 93139156519. The next prime is 93139156543. The reversal of 93139156530 is 3565193139.

93139156530 is a `hidden beast` number, since 9 + 31 + 39 + 1 + 56 + 530 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 31347945 + ... + 31350915.

It is an arithmetic number, because the mean of its divisors is an integer number (795128880).

Almost surely, 293139156530 is an apocalyptic number.

93139156530 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 93139156530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152664744960).

93139156530 is an abundant number, since it is smaller than the sum of its proper divisors (212190333390).

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

93139156530 is a wasteful number, since it uses less digits than its factorization.

93139156530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116 (or 3104 counting only the distinct ones).

The product of its (nonzero) digits is 328050, while the sum is 45.

The spelling of 93139156530 in words is "ninety-three billion, one hundred thirty-nine million, one hundred fifty-six thousand, five hundred thirty".