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70131723 = 324197001
BaseRepresentation
bin1000010111000…
…10000000001011
311212222001122020
410023202000023
5120423203343
610543055523
71511052444
oct413420013
9155861566
1070131723
1136651002
121b5a15a3
13116b677c
1494582cb
156254b83
hex42e200b

70131723 has 8 divisors (see below), whose sum is σ = 93897936. Its totient is φ = 46560000.

The previous prime is 70131709. The next prime is 70131731. The reversal of 70131723 is 32713107.

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

It is not a de Polignac number, because 70131723 - 29 = 70131211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70131693 and 70131702.

It is not an unprimeable number, because it can be changed into a prime (70131023) 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, 47778 + ... + 49223.

It is an arithmetic number, because the mean of its divisors is an integer number (11737242).

Almost surely, 270131723 is an apocalyptic number.

70131723 is a deficient number, since it is larger than the sum of its proper divisors (23766213).

70131723 is a wasteful number, since it uses less digits than its factorization.

70131723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97245.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 70131723 is about 8374.4685204495. The cubic root of 70131723 is about 412.3868766017.

The spelling of 70131723 in words is "seventy million, one hundred thirty-one thousand, seven hundred twenty-three".

Divisors: 1 3 241 723 97001 291003 23377241 70131723