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70354872 = 23337193179
BaseRepresentation
bin1000011000110…
…00011110111000
311220101101202000
410030120132320
5121002323442
610551541000
71513002150
oct414303670
9156341660
1070354872
1136793725
121b68a760
1311764203
1494b5760
15629ad4c
hex43187b8

70354872 has 256 divisors, whose sum is σ = 245760000. Its totient is φ = 18195840.

The previous prime is 70354849. The next prime is 70354913. The reversal of 70354872 is 27845307.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 890529 + ... + 890607.

It is an arithmetic number, because the mean of its divisors is an integer number (960000).

Almost surely, 270354872 is an apocalyptic number.

70354872 is a gapful number since it is divisible by the number (72) 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 70354872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122880000).

70354872 is an abundant number, since it is smaller than the sum of its proper divisors (175405128).

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

70354872 is a wasteful number, since it uses less digits than its factorization.

70354872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 70354872 is about 8387.7811130239. The cubic root of 70354872 is about 412.8237986550.

The spelling of 70354872 in words is "seventy million, three hundred fifty-four thousand, eight hundred seventy-two".