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23141046440 = 235578526161
BaseRepresentation
bin10101100011010100…
…000101100010101000
32012201201221221221002
4111203110011202220
5334343101441230
614344132534132
71446312435461
oct254324054250
965651857832
1023141046440
1198a5576776
124599a81348
13224a3748b5
141197525d68
159068c1545
hex5635058a8

23141046440 has 16 divisors (see below), whose sum is σ = 52067354580. Its totient is φ = 9256418560.

The previous prime is 23141046421. The next prime is 23141046457. The reversal of 23141046440 is 4464014132.

It can be written as a sum of positive squares in 2 ways, for example, as 19317108196 + 3823938244 = 138986^2 + 61838^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289263041 + ... + 289263120.

Almost surely, 223141046440 is an apocalyptic number.

23141046440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23141046440 is an abundant number, since it is smaller than the sum of its proper divisors (28926308140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23141046440 is a wasteful number, since it uses less digits than its factorization.

23141046440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578526172 (or 578526168 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The spelling of 23141046440 in words is "twenty-three billion, one hundred forty-one million, forty-six thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 578526161 1157052322 2314104644 2892630805 4628209288 5785261610 11570523220 23141046440