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70135473 = 3217910729
BaseRepresentation
bin1000010111000…
…10111010110001
311212222020210010
410023202322301
5120423313343
610543125133
71511066412
oct413427261
9155866703
1070135473
1136653901
121b5a37a9
13116b83a5
149459809
156255d33
hex42e2eb1

70135473 has 8 divisors (see below), whose sum is σ = 93565600. Its totient is φ = 46731168.

The previous prime is 70135469. The next prime is 70135493. The reversal of 70135473 is 37453107.

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

It is not a de Polignac number, because 70135473 - 22 = 70135469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70135473.

It is not an unprimeable number, because it can be changed into a prime (70135453) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1173 + ... + 11901.

It is an arithmetic number, because the mean of its divisors is an integer number (11695700).

Almost surely, 270135473 is an apocalyptic number.

It is an amenable number.

70135473 is a deficient number, since it is larger than the sum of its proper divisors (23430127).

70135473 is a wasteful number, since it uses less digits than its factorization.

70135473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12911.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 70135473 is about 8374.6924122621. The cubic root of 70135473 is about 412.3942266907.

The spelling of 70135473 in words is "seventy million, one hundred thirty-five thousand, four hundred seventy-three".

Divisors: 1 3 2179 6537 10729 32187 23378491 70135473