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2123712856 = 23379700433
BaseRepresentation
bin111111010010101…
…0100100101011000
312111000010210100201
41332211110211120
513322132302411
6550422311544
7103425155446
oct17645244530
95430123321
102123712856
1199a8649a1
124b32885b4
1327aca1235
1416209db96
15c669d3c1
hex7e954958

2123712856 has 16 divisors (see below), whose sum is σ = 3992473800. Its totient is φ = 1059053184.

The previous prime is 2123712841. The next prime is 2123712887. The reversal of 2123712856 is 6582173212.

It is a congruent number.

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, 347185 + ... + 353248.

Almost surely, 22123712856 is an apocalyptic number.

It is an amenable number.

2123712856 is a deficient number, since it is larger than the sum of its proper divisors (1868760944).

2123712856 is a wasteful number, since it uses less digits than its factorization.

2123712856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700818 (or 700814 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 2123712856 is about 46083.7591348623. The cubic root of 2123712856 is about 1285.3811656724.

The spelling of 2123712856 in words is "two billion, one hundred twenty-three million, seven hundred twelve thousand, eight hundred fifty-six".

Divisors: 1 2 4 8 379 758 1516 3032 700433 1400866 2801732 5603464 265464107 530928214 1061856428 2123712856