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193420296 = 23322686393
BaseRepresentation
bin10111000011101…
…01110000001000
3111110221202202200
423201311300020
5344003422141
631105400200
74536021366
oct1341656010
9443852680
10193420296
119a1a9593
1254939060
13310c24a4
141b98c636
1511ea9ab6
hexb875c08

193420296 has 24 divisors (see below), whose sum is σ = 523846830. Its totient is φ = 64473408.

The previous prime is 193420273. The next prime is 193420303. The reversal of 193420296 is 692024391.

It can be written as a sum of positive squares in only one way, i.e., 154107396 + 39312900 = 12414^2 + 6270^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1934202962 = 74822821809455232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 193420296.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1343125 + ... + 1343268.

Almost surely, 2193420296 is an apocalyptic number.

It is an amenable number.

193420296 is an abundant number, since it is smaller than the sum of its proper divisors (330426534).

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

193420296 is a wasteful number, since it uses less digits than its factorization.

193420296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686405 (or 2686398 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 193420296 is about 13907.5625470461. The cubic root of 193420296 is about 578.3188496310.

The spelling of 193420296 in words is "one hundred ninety-three million, four hundred twenty thousand, two hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 2686393 5372786 8059179 10745572 16118358 21491144 24177537 32236716 48355074 64473432 96710148 193420296