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70385924 = 2276613803
BaseRepresentation
bin1000011001000…
…00000100000100
311220102222100002
410030200010010
5121004322144
610552340432
71513161530
oct414400404
9156388302
1070385924
1136804a94
121b6a4718
131177539b
1494c2bc0
1562a514e
hex4320104

70385924 has 24 divisors (see below), whose sum is σ = 141021888. Its totient is φ = 30111840.

The previous prime is 70385897. The next prime is 70385927. The reversal of 70385924 is 42958307.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (70385927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16607 + ... + 20409.

It is an arithmetic number, because the mean of its divisors is an integer number (5875912).

Almost surely, 270385924 is an apocalyptic number.

It is an amenable number.

70385924 is an abundant number, since it is smaller than the sum of its proper divisors (70635964).

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

70385924 is a wasteful number, since it uses less digits than its factorization.

70385924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475 (or 4473 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 70385924 is about 8389.6319347156. The cubic root of 70385924 is about 412.8845246988.

The spelling of 70385924 in words is "seventy million, three hundred eighty-five thousand, nine hundred twenty-four".

Divisors: 1 2 4 7 14 28 661 1322 2644 3803 4627 7606 9254 15212 18508 26621 53242 106484 2513783 5027566 10055132 17596481 35192962 70385924