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7986680252 = 221996670063
BaseRepresentation
bin1110111000000101…
…10001000110111100
3202121121100101122022
413130002301012330
5112324042232002
63400302135312
7401626443035
oct73402610674
922547311568
107986680252
1134293000a1
12166a881538
139a385b505
1455a9dba8c
1531b268ba2
hex1dc0b11bc

7986680252 has 6 divisors (see below), whose sum is σ = 13976690448. Its totient is φ = 3993340124.

The previous prime is 7986680231. The next prime is 7986680281. The reversal of 7986680252 is 2520866897.

It is a super-2 number, since 2×79866802522 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7986680194 and 7986680203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998335028 + ... + 998335035.

It is an arithmetic number, because the mean of its divisors is an integer number (2329448408).

Almost surely, 27986680252 is an apocalyptic number.

It is an amenable number.

7986680252 is a deficient number, since it is larger than the sum of its proper divisors (5990010196).

7986680252 is a wasteful number, since it uses less digits than its factorization.

7986680252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996670067 (or 1996670065 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 7986680252 is about 89368.2284259904. The cubic root of 7986680252 is about 1998.8894044029.

The spelling of 7986680252 in words is "seven billion, nine hundred eighty-six million, six hundred eighty thousand, two hundred fifty-two".

Divisors: 1 2 4 1996670063 3993340126 7986680252