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193474009 = 5316721859
BaseRepresentation
bin10111000100000…
…10110111011001
3111111001111110001
423202002313121
5344012132014
631110453001
74536334111
oct1342026731
9444044401
10193474009
119a235983
1254964161
1331110a81
141b9a4041
1511eba974
hexb882dd9

193474009 has 8 divisors (see below), whose sum is σ = 198313920. Its totient is φ = 188678256.

The previous prime is 193473997. The next prime is 193474027. The reversal of 193474009 is 900474391.

193474009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 193474009 - 213 = 193465817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193474049) 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, 2079 + ... + 19780.

It is an arithmetic number, because the mean of its divisors is an integer number (24789240).

Almost surely, 2193474009 is an apocalyptic number.

It is an amenable number.

193474009 is a deficient number, since it is larger than the sum of its proper divisors (4839911).

193474009 is a wasteful number, since it uses less digits than its factorization.

193474009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22079.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 193474009 is about 13909.4934846672. The cubic root of 193474009 is about 578.3723779077.

The spelling of 193474009 in words is "one hundred ninety-three million, four hundred seventy-four thousand, nine".

Divisors: 1 53 167 8851 21859 1158527 3650453 193474009