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7972679142 = 2321726054507
BaseRepresentation
bin1110110110011010…
…10110110111100110
3202120122000001201200
413123031112313212
5112312001213032
63355042103330
7401366440341
oct73315266746
922518001650
107972679142
11342140792a
12166604ab46
139a099872c
14558bd5458
15319e0047c
hex1db356de6

7972679142 has 24 divisors (see below), whose sum is σ = 18290264616. Its totient is φ = 2501232576.

The previous prime is 7972679119. The next prime is 7972679161. The reversal of 7972679142 is 2419762797.

It is a super-2 number, since 2×79726791422 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13026948 + ... + 13027559.

It is an arithmetic number, because the mean of its divisors is an integer number (762094359).

Almost surely, 27972679142 is an apocalyptic number.

7972679142 is an abundant number, since it is smaller than the sum of its proper divisors (10317585474).

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

7972679142 is a wasteful number, since it uses less digits than its factorization.

7972679142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26054532 (or 26054529 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 7972679142 is about 89289.8602417990. The cubic root of 7972679142 is about 1997.7206651365.

The spelling of 7972679142 in words is "seven billion, nine hundred seventy-two million, six hundred seventy-nine thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 26054507 52109014 78163521 156327042 234490563 442926619 468981126 885853238 1328779857 2657559714 3986339571 7972679142