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70395405 = 354693027
BaseRepresentation
bin1000011001000…
…10011000001101
311220110110100020
410030202120031
5121010123110
610552452353
71513231263
oct414423015
9156413306
1070395405
1136811123
121b6aa0b9
13117797b2
1494c6433
1562a7d70
hex432260d

70395405 has 8 divisors (see below), whose sum is σ = 112632672. Its totient is φ = 37544208.

The previous prime is 70395397. The next prime is 70395421. The reversal of 70395405 is 50459307.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70395405 - 23 = 70395397 is a prime.

It is a super-2 number, since 2×703954052 = 9911026090228050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2346499 + ... + 2346528.

It is an arithmetic number, because the mean of its divisors is an integer number (14079084).

Almost surely, 270395405 is an apocalyptic number.

It is an amenable number.

70395405 is a deficient number, since it is larger than the sum of its proper divisors (42237267).

70395405 is a wasteful number, since it uses less digits than its factorization.

70395405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693035.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 70395405 is about 8390.1969583556. The cubic root of 70395405 is about 412.9030624130.

The spelling of 70395405 in words is "seventy million, three hundred ninety-five thousand, four hundred five".

Divisors: 1 3 5 15 4693027 14079081 23465135 70395405