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231145754536730 = 25115593137569953
BaseRepresentation
bin110100100011100111010000…
…100101110010101100011010
31010022102022121001121212122202
4310203213100211302230122
5220244043001130133410
62135334521012450202
766454505163622265
oct6443472045625432
91108368531555582
10231145754536730
116771740052a010
1221b11719619962
139bc8c4980cc67
14411172add9cdc
151bac9715edca5
hexd239d0972b1a

231145754536730 has 32 divisors (see below), whose sum is σ = 453894336099648. Its totient is φ = 84051496614400.

The previous prime is 231145754536703. The next prime is 231145754536771. The reversal of 231145754536730 is 37635457541132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12632567 + ... + 24937386.

It is an arithmetic number, because the mean of its divisors is an integer number (14184198003114).

Almost surely, 2231145754536730 is an apocalyptic number.

231145754536730 is a deficient number, since it is larger than the sum of its proper divisors (222748581562918).

231145754536730 is a wasteful number, since it uses less digits than its factorization.

231145754536730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37625902.

The product of its (nonzero) digits is 31752000, while the sum is 56.

The spelling of 231145754536730 in words is "two hundred thirty-one trillion, one hundred forty-five billion, seven hundred fifty-four million, five hundred thirty-six thousand, seven hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 55931 111862 279655 559310 615241 1230482 3076205 6152410 37569953 75139906 187849765 375699530 413269483 826538966 2066347415 4132694830 2101325041243 4202650082486 10506625206215 21013250412430 23114575453673 46229150907346 115572877268365 231145754536730