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193312492 = 22291666487
BaseRepresentation
bin10111000010110…
…11011011101100
3111110202021212221
423201123123230
5343441444432
631103205124
74535062162
oct1341333354
9443667787
10193312492
119a13559a
12548a67a4
13310853b9
141b961232
1511e87b97
hexb85b6ec

193312492 has 12 divisors (see below), whose sum is σ = 349962480. Its totient is φ = 93323216.

The previous prime is 193312459. The next prime is 193312523. The reversal of 193312492 is 294213391.

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, 833128 + ... + 833359.

It is an arithmetic number, because the mean of its divisors is an integer number (29163540).

Almost surely, 2193312492 is an apocalyptic number.

It is an amenable number.

193312492 is a deficient number, since it is larger than the sum of its proper divisors (156649988).

193312492 is a wasteful number, since it uses less digits than its factorization.

193312492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666520 (or 1666518 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 193312492 is about 13903.6862737908. The cubic root of 193312492 is about 578.2113864658.

The spelling of 193312492 in words is "one hundred ninety-three million, three hundred twelve thousand, four hundred ninety-two".

Divisors: 1 2 4 29 58 116 1666487 3332974 6665948 48328123 96656246 193312492