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70750131 = 346151157
BaseRepresentation
bin1000011011110…
…00111110110011
311221010110221020
410031320332303
5121103001011
611004230523
71516236414
oct415707663
9157113836
1070750131
1136a33691
121b83b443
13118720aa
14957980b
156328006
hex4378fb3

70750131 has 8 divisors (see below), whose sum is σ = 94539984. Its totient is φ = 47063520.

The previous prime is 70750103. The next prime is 70750157. The reversal of 70750131 is 13105707.

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

It is not a de Polignac number, because 70750131 - 27 = 70750003 is a prime.

It is a super-2 number, since 2×707501312 = 10011162073034322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70750171) 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, 24196 + ... + 26961.

It is an arithmetic number, because the mean of its divisors is an integer number (11817498).

Almost surely, 270750131 is an apocalyptic number.

70750131 is a deficient number, since it is larger than the sum of its proper divisors (23789853).

70750131 is a wasteful number, since it uses less digits than its factorization.

70750131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51621.

The product of its (nonzero) digits is 735, while the sum is 24.

The square root of 70750131 is about 8411.3097077685. The cubic root of 70750131 is about 413.5954471843.

Adding to 70750131 its reverse (13105707), we get a palindrome (83855838).

The spelling of 70750131 in words is "seventy million, seven hundred fifty thousand, one hundred thirty-one".

Divisors: 1 3 461 1383 51157 153471 23583377 70750131