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195253408 = 2577112277
BaseRepresentation
bin10111010001101…
…01010010100000
3111121101220022201
423220311102200
5344441102113
631212542544
74560424630
oct1350652240
9447356281
10195253408
11a0240859
1255481a54
13315b497c
141bd086c0
151221ccdd
hexba354a0

195253408 has 48 divisors (see below), whose sum is σ = 445544064. Its totient is φ = 82494720.

The previous prime is 195253393. The next prime is 195253423. The reversal of 195253408 is 804352591.

It is an interprime number because it is at equal distance from previous prime (195253393) and next prime (195253423).

It is a super-2 number, since 2×1952534082 = 76247786671228928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9766 + ... + 22042.

It is an arithmetic number, because the mean of its divisors is an integer number (9282168).

Almost surely, 2195253408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195253408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222772032).

195253408 is an abundant number, since it is smaller than the sum of its proper divisors (250290656).

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

195253408 is a wasteful number, since it uses less digits than its factorization.

195253408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12365 (or 12357 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 195253408 is about 13973.3105597779. The cubic root of 195253408 is about 580.1400850692.

The spelling of 195253408 in words is "one hundred ninety-five million, two hundred fifty-three thousand, four hundred eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 71 112 142 224 284 497 568 994 1136 1988 2272 3976 7952 12277 15904 24554 49108 85939 98216 171878 196432 343756 392864 687512 871667 1375024 1743334 2750048 3486668 6101669 6973336 12203338 13946672 24406676 27893344 48813352 97626704 195253408