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193049664 = 2631005467
BaseRepresentation
bin10111000000110…
…11010001000000
3111110020221100120
423200123101000
5343410042124
631053420240
74532616003
oct1340332100
9443227316
10193049664
1199a76085
125479a680
1330cc2892
141b8d353a
1511e34d79
hexb81b440

193049664 has 28 divisors (see below), whose sum is σ = 510777744. Its totient is φ = 64349824.

The previous prime is 193049657. The next prime is 193049669. The reversal of 193049664 is 466940391.

It is not an unprimeable number, because it can be changed into a prime (193049669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502542 + ... + 502925.

Almost surely, 2193049664 is an apocalyptic number.

It is an amenable number.

193049664 is an abundant number, since it is smaller than the sum of its proper divisors (317728080).

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

193049664 is a wasteful number, since it uses less digits than its factorization.

193049664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005482 (or 1005472 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 193049664 is about 13894.2313209476. The cubic root of 193049664 is about 577.9492218815.

The spelling of 193049664 in words is "one hundred ninety-three million, forty-nine thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 1005467 2010934 3016401 4021868 6032802 8043736 12065604 16087472 24131208 32174944 48262416 64349888 96524832 193049664