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3131420314 = 211371938273
BaseRepresentation
bin1011101010100101…
…1010111010011010
322002020022122010011
42322221122322122
522403120422224
61234421112134
7140412430201
oct27251327232
98066278104
103131420314
111367672480
1273485864a
133ab9a9639
14219c56238
15134da3394
hexbaa5ae9a

3131420314 has 16 divisors (see below), whose sum is σ = 5125654080. Its totient is φ = 1422952960.

The previous prime is 3131420311. The next prime is 3131420321. The reversal of 3131420314 is 4130241313.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (3131420311) 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, 62682 + ... + 100954.

It is an arithmetic number, because the mean of its divisors is an integer number (320353380).

Almost surely, 23131420314 is an apocalyptic number.

3131420314 is a deficient number, since it is larger than the sum of its proper divisors (1994233766).

3131420314 is a wasteful number, since it uses less digits than its factorization.

3131420314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42005.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3131420314 is about 55959.0950069781. The cubic root of 3131420314 is about 1463.0094168515.

Adding to 3131420314 its reverse (4130241313), we get a palindrome (7261661627).

The spelling of 3131420314 in words is "three billion, one hundred thirty-one million, four hundred twenty thousand, three hundred fourteen".

Divisors: 1 2 11 22 3719 7438 38273 40909 76546 81818 421003 842006 142337287 284674574 1565710157 3131420314