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70575945 = 3511427733
BaseRepresentation
bin1000011010011…
…10011101001001
311220210121222220
410031032131021
5121031412240
611000404253
71514612526
oct415163511
9156717886
1070575945
1136924830
121b776689
1311810a1b
14953214d
1562e15d0
hex434e749

70575945 has 16 divisors (see below), whose sum is σ = 123187392. Its totient is φ = 34218560.

The previous prime is 70575931. The next prime is 70575971. The reversal of 70575945 is 54957507.

It is not a de Polignac number, because 70575945 - 28 = 70575689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70575897 and 70575906.

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 15 ways as a sum of consecutive naturals, for example, 213702 + ... + 214031.

It is an arithmetic number, because the mean of its divisors is an integer number (7699212).

Almost surely, 270575945 is an apocalyptic number.

It is an amenable number.

70575945 is a deficient number, since it is larger than the sum of its proper divisors (52611447).

70575945 is a wasteful number, since it uses less digits than its factorization.

70575945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427752.

The product of its (nonzero) digits is 220500, while the sum is 42.

The square root of 70575945 is about 8400.9490535296. The cubic root of 70575945 is about 413.2557458571.

The spelling of 70575945 in words is "seventy million, five hundred seventy-five thousand, nine hundred forty-five".

Divisors: 1 3 5 11 15 33 55 165 427733 1283199 2138665 4705063 6415995 14115189 23525315 70575945