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193302893 = 7229136033
BaseRepresentation
bin10111000010110…
…01000101101101
3111110201210201102
423201121011231
5343441143033
631103052445
74535022200
oct1341310555
9443653642
10193302893
119a129363
12548a1125
1331080c14
141b95b937
1511e84de8
hexb85916d

193302893 has 12 divisors (see below), whose sum is σ = 232618140. Its totient is φ = 159973632.

The previous prime is 193302877. The next prime is 193302899. The reversal of 193302893 is 398203391.

193302893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 37002889 + 156300004 = 6083^2 + 12502^2 .

It is not a de Polignac number, because 193302893 - 24 = 193302877 is a prime.

It is a super-3 number, since 3×1933028933 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193302899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66596 + ... + 69437.

It is an arithmetic number, because the mean of its divisors is an integer number (19384845).

Almost surely, 2193302893 is an apocalyptic number.

It is an amenable number.

193302893 is a deficient number, since it is larger than the sum of its proper divisors (39315247).

193302893 is a wasteful number, since it uses less digits than its factorization.

193302893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136076 (or 136069 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 193302893 is about 13903.3410732816. The cubic root of 193302893 is about 578.2018158772.

The spelling of 193302893 in words is "one hundred ninety-three million, three hundred two thousand, eight hundred ninety-three".

Divisors: 1 7 29 49 203 1421 136033 952231 3944957 6665617 27614699 193302893