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7812923852 = 2217114895939
BaseRepresentation
bin1110100011010111…
…11100000111001100
3202011111101122200002
413101223330013030
5112000102030402
63331134023432
7364416520436
oct72153740714
922144348602
107812923852
11334a212368
121620647b78
13976862486
145418cb656
1530ad95602
hex1d1afc1cc

7812923852 has 12 divisors (see below), whose sum is σ = 14476888440. Its totient is φ = 3676670016.

The previous prime is 7812923837. The next prime is 7812923863. The reversal of 7812923852 is 2583292187.

It is a super-2 number, since 2×78129238522 (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 7812923797 and 7812923806.

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, 57447902 + ... + 57448037.

It is an arithmetic number, because the mean of its divisors is an integer number (1206407370).

Almost surely, 27812923852 is an apocalyptic number.

It is an amenable number.

7812923852 is a deficient number, since it is larger than the sum of its proper divisors (6663964588).

7812923852 is a wasteful number, since it uses less digits than its factorization.

7812923852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114895960 (or 114895958 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 7812923852 is about 88390.7452847865. The cubic root of 7812923852 is about 1984.2871982106.

The spelling of 7812923852 in words is "seven billion, eight hundred twelve million, nine hundred twenty-three thousand, eight hundred fifty-two".

Divisors: 1 2 4 17 34 68 114895939 229791878 459583756 1953230963 3906461926 7812923852