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192161292 = 22316013441
BaseRepresentation
bin10110111010000…
…10011000001100
3111101120210201220
423131002120030
5343143130132
631022403340
74522226001
oct1335023014
9441523656
10192161292
1199519694
1254430550
1330a7140b
141b7418a8
1511d0ba2c
hexb74260c

192161292 has 12 divisors (see below), whose sum is σ = 448376376. Its totient is φ = 64053760.

The previous prime is 192161237. The next prime is 192161303. The reversal of 192161292 is 292161291.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8006709 + ... + 8006732.

It is an arithmetic number, because the mean of its divisors is an integer number (37364698).

Almost surely, 2192161292 is an apocalyptic number.

192161292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

192161292 is an abundant number, since it is smaller than the sum of its proper divisors (256215084).

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

192161292 is a wasteful number, since it uses less digits than its factorization.

192161292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16013448 (or 16013446 counting only the distinct ones).

The product of its digits is 3888, while the sum is 33.

The square root of 192161292 is about 13862.2253624734. The cubic root of 192161292 is about 577.0613268790.

Subtracting 192161292 from its reverse (292161291), we obtain a palindrome (99999999).

The spelling of 192161292 in words is "one hundred ninety-two million, one hundred sixty-one thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 16013441 32026882 48040323 64053764 96080646 192161292