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2947872372 = 2232310680697
BaseRepresentation
bin1010111110110100…
…1111011001110100
321121102221102200020
42233231033121310
522014123403442
61204303045140
7133023334044
oct25755173164
97542842606
102947872372
111282aa7165
126a32a07b0
1337c9628a3
141dd717724
15123be89ec
hexafb4f674

2947872372 has 24 divisors (see below), whose sum is σ = 7177429056. Its totient is φ = 939901248.

The previous prime is 2947872293. The next prime is 2947872377. The reversal of 2947872372 is 2732787492.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947872377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5340073 + ... + 5340624.

It is an arithmetic number, because the mean of its divisors is an integer number (299059544).

Almost surely, 22947872372 is an apocalyptic number.

It is an amenable number.

2947872372 is an abundant number, since it is smaller than the sum of its proper divisors (4229556684).

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

2947872372 is a wasteful number, since it uses less digits than its factorization.

2947872372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680727 (or 10680725 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 51.

The square root of 2947872372 is about 54294.3125198211. The cubic root of 2947872372 is about 1433.8472650401.

The spelling of 2947872372 in words is "two billion, nine hundred forty-seven million, eight hundred seventy-two thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 10680697 21361394 32042091 42722788 64084182 128168364 245656031 491312062 736968093 982624124 1473936186 2947872372