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23278748484 = 2237159270973
BaseRepresentation
bin10101101011100001…
…011000001101000100
32020002100001221121210
4111223201120031010
5340133324422414
614405532211420
71452604045245
oct255341301504
966070057553
1023278748484
119966279312
124618009b70
13226ca58cb4
1411ab92cccc
15913a21e59
hex56b858344

23278748484 has 24 divisors (see below), whose sum is σ = 54324867520. Its totient is φ = 7758470304.

The previous prime is 23278748443. The next prime is 23278748497. The reversal of 23278748484 is 48484787232.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49579 + ... + 221394.

Almost surely, 223278748484 is an apocalyptic number.

It is an amenable number.

23278748484 is an abundant number, since it is smaller than the sum of its proper divisors (31046119036).

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

23278748484 is a wasteful number, since it uses less digits than its factorization.

23278748484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278139 (or 278137 counting only the distinct ones).

The product of its digits is 19267584, while the sum is 57.

The spelling of 23278748484 in words is "twenty-three billion, two hundred seventy-eight million, seven hundred forty-eight thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 7159 14318 21477 28636 42954 85908 270973 541946 812919 1083892 1625838 3251676 1939895707 3879791414 5819687121 7759582828 11639374242 23278748484