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192919284 = 22325358869
BaseRepresentation
bin10110111111110…
…11011011110100
3111110000022111200
423133323123310
5343341404114
631050532500
74531533615
oct1337733364
9443008450
10192919284
1199997128
1254737130
1330c7842c
141b89bc0c
1511e0b409
hexb7fb6f4

192919284 has 18 divisors (see below), whose sum is σ = 487657170. Its totient is φ = 64306416.

The previous prime is 192919273. The next prime is 192919297. The reversal of 192919284 is 482919291.

It can be written as a sum of positive squares in only one way, i.e., 164403684 + 28515600 = 12822^2 + 5340^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

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, 2679399 + ... + 2679470.

It is an arithmetic number, because the mean of its divisors is an integer number (27092065).

Almost surely, 2192919284 is an apocalyptic number.

It is an amenable number.

192919284 is an abundant number, since it is smaller than the sum of its proper divisors (294737886).

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

192919284 is a wasteful number, since it uses less digits than its factorization.

192919284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5358879 (or 5358874 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 192919284 is about 13889.5386532455. The cubic root of 192919284 is about 577.8190826760.

The spelling of 192919284 in words is "one hundred ninety-two million, nine hundred nineteen thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 5358869 10717738 16076607 21435476 32153214 48229821 64306428 96459642 192919284