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3139725286 = 21997888757
BaseRepresentation
bin1011101100100100…
…0110011111100110
322002210221120101201
42323021012133212
522412232202121
61235315113114
7140543140015
oct27311063746
98083846351
103139725286
111371325095
127375a279a
133b0626819
1421adb8a7c
15135993e91
hexbb2467e6

3139725286 has 8 divisors (see below), whose sum is σ = 4733254800. Its totient is φ = 1561973688.

The previous prime is 3139725283. The next prime is 3139725287. The reversal of 3139725286 is 6825279313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3139725283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3943981 + ... + 3944776.

It is an arithmetic number, because the mean of its divisors is an integer number (591656850).

Almost surely, 23139725286 is an apocalyptic number.

3139725286 is a deficient number, since it is larger than the sum of its proper divisors (1593529514).

3139725286 is a wasteful number, since it uses less digits than its factorization.

3139725286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7888958.

The product of its digits is 544320, while the sum is 46.

The square root of 3139725286 is about 56033.2516100931. The cubic root of 3139725286 is about 1464.3016448103.

The spelling of 3139725286 in words is "three billion, one hundred thirty-nine million, seven hundred twenty-five thousand, two hundred eighty-six".

Divisors: 1 2 199 398 7888757 15777514 1569862643 3139725286