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2131941992 = 23713753419
BaseRepresentation
bin111111100010010…
…1101101001101000
312111120121212121112
41333010231221220
513331234120432
6551314525452
7103555131215
oct17704555150
95446555545
102131941992
119a4475634
124b5b96888
1327c8c2a4b
14163202b0c
15c72767b2
hex7f12da68

2131941992 has 16 divisors (see below), whose sum is σ = 4053693600. Its totient is φ = 1050957040.

The previous prime is 2131941947. The next prime is 2131941997. The reversal of 2131941992 is 2991491312.

It is not an unprimeable number, because it can be changed into a prime (2131941997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1876142 + ... + 1877277.

It is an arithmetic number, because the mean of its divisors is an integer number (253355850).

Almost surely, 22131941992 is an apocalyptic number.

It is an amenable number.

2131941992 is a deficient number, since it is larger than the sum of its proper divisors (1921751608).

2131941992 is a wasteful number, since it uses less digits than its factorization.

2131941992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753496 (or 3753492 counting only the distinct ones).

The product of its digits is 34992, while the sum is 41.

The square root of 2131941992 is about 46172.9573668397. The cubic root of 2131941992 is about 1287.0392591766.

The spelling of 2131941992 in words is "two billion, one hundred thirty-one million, nine hundred forty-one thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 71 142 284 568 3753419 7506838 15013676 30027352 266492749 532985498 1065970996 2131941992