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70725984 = 25371741151
BaseRepresentation
bin1000011011100…
…11000101100000
311221002020210220
410031303011200
5121101212414
611003523040
71516106130
oct415630540
9157066726
1070725984
1136a1752a
121b829480
13118640c4
149570ac0
156320ca9
hex4373160

70725984 has 192 divisors, whose sum is σ = 231662592. Its totient is φ = 18432000.

The previous prime is 70725971. The next prime is 70725997. The reversal of 70725984 is 48952707.

It is an interprime number because it is at equal distance from previous prime (70725971) and next prime (70725997).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468309 + ... + 468459.

It is an arithmetic number, because the mean of its divisors is an integer number (1206576).

Almost surely, 270725984 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 70725984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115831296).

70725984 is an abundant number, since it is smaller than the sum of its proper divisors (160936608).

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

70725984 is a wasteful number, since it uses less digits than its factorization.

70725984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 70725984 is about 8409.8741964431. The cubic root of 70725984 is about 413.5483884932.

The spelling of 70725984 in words is "seventy million, seven hundred twenty-five thousand, nine hundred eighty-four".