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70378835 = 531297151
BaseRepresentation
bin1000011000111…
…10010101010011
311220102121121112
410030132111103
5121004110320
610552243535
71513132052
oct414362523
9156377545
1070378835
11367aa72a
121b6a05ab
13117720a7
1494c0399
1562a2ec5
hex431e553

70378835 has 24 divisors (see below), whose sum is σ = 88750368. Its totient is φ = 53568000.

The previous prime is 70378823. The next prime is 70378843. The reversal of 70378835 is 53887307.

It is not a de Polignac number, because 70378835 - 28 = 70378579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70378792 and 70378801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466010 + ... + 466160.

It is an arithmetic number, because the mean of its divisors is an integer number (3697932).

Almost surely, 270378835 is an apocalyptic number.

70378835 is a deficient number, since it is larger than the sum of its proper divisors (18371533).

70378835 is a wasteful number, since it uses less digits than its factorization.

70378835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 70378835 is about 8389.2094383202. The cubic root of 70378835 is about 412.8706628521.

The spelling of 70378835 in words is "seventy million, three hundred seventy-eight thousand, eight hundred thirty-five".

Divisors: 1 5 31 97 151 155 485 755 961 3007 4681 4805 14647 15035 23405 73235 93217 145111 454057 466085 725555 2270285 14075767 70378835