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70985134080 = 21234576113
BaseRepresentation
bin100001000011100001…
…0110011000000000000
320210020002001102210000
41002013002303000000
52130334143242310
652335441440000
75062035453450
oct1020702630000
9223202042700
1070985134080
1128117291973
1211910940000
13690357b223
1436157b3d60
151ca6d574c0
hex10870b3000

70985134080 has 520 divisors, whose sum is σ = 290863327392. Its totient is φ = 16222519296.

The previous prime is 70985134043. The next prime is 70985134093. The reversal of 70985134080 is 8043158907.

70985134080 is a `hidden beast` number, since 7 + 0 + 98 + 513 + 40 + 8 + 0 = 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 39 ways as a sum of consecutive naturals, for example, 11609104 + ... + 11615216.

Almost surely, 270985134080 is an apocalyptic number.

70985134080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70985134080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145431663696).

70985134080 is an abundant number, since it is smaller than the sum of its proper divisors (219878193312).

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

70985134080 is an equidigital number, since it uses as much as digits as its factorization.

70985134080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6161 (or 6130 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 70985134080 in words is "seventy billion, nine hundred eighty-five million, one hundred thirty-four thousand, eighty".