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7143212356 = 22735206423
BaseRepresentation
bin1101010011100010…
…01100010101000100
3200102211012210012121
412221301030111010
5104112130243411
63140451455324
7342005206000
oct65161142504
920384183177
107143212356
113036180195
1214742b7544
1389ab99497
144ba999700
152bc1a7571
hex1a9c4c544

7143212356 has 24 divisors (see below), whose sum is σ = 14577987200. Its totient is φ = 3061376136.

The previous prime is 7143212333. The next prime is 7143212369. The reversal of 7143212356 is 6532123417.

It is a super-2 number, since 2×71432123562 (a number of 21 digits) contains 22 as substring.

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, 2601840 + ... + 2604583.

Almost surely, 27143212356 is an apocalyptic number.

It is an amenable number.

7143212356 is an abundant number, since it is smaller than the sum of its proper divisors (7434774844).

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

7143212356 is a wasteful number, since it uses less digits than its factorization.

7143212356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5206448 (or 5206432 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 7143212356 is about 84517.5269160190. The cubic root of 7143212356 is about 1925.8887092083. Note that the first 3 decimals are identical.

The spelling of 7143212356 in words is "seven billion, one hundred forty-three million, two hundred twelve thousand, three hundred fifty-six".

Divisors: 1 2 4 7 14 28 49 98 196 343 686 1372 5206423 10412846 20825692 36444961 72889922 145779844 255114727 510229454 1020458908 1785803089 3571606178 7143212356