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193512013 = 316793169
BaseRepresentation
bin10111000100011…
…00001001001101
3111111010102120121
423202030021031
5344014341023
631111344541
74536552652
oct1342141115
9444112517
10193512013
119a261492
1254982151
1331125166
141b9b3c29
1511ec6d5d
hexb88c24d

193512013 has 8 divisors (see below), whose sum is σ = 202737920. Its totient is φ = 184472640.

The previous prime is 193511963. The next prime is 193512023. The reversal of 193512013 is 310215391.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-193512013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193512023) 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, 44508 + ... + 48661.

It is an arithmetic number, because the mean of its divisors is an integer number (25342240).

Almost surely, 2193512013 is an apocalyptic number.

It is an amenable number.

193512013 is a deficient number, since it is larger than the sum of its proper divisors (9225907).

193512013 is an equidigital number, since it uses as much as digits as its factorization.

193512013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93267.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 193512013 is about 13910.8595349101. The cubic root of 193512013 is about 578.4102452245.

The spelling of 193512013 in words is "one hundred ninety-three million, five hundred twelve thousand, thirteen".

Divisors: 1 31 67 2077 93169 2888239 6242323 193512013