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190572468 = 22315881039
BaseRepresentation
bin10110101101111…
…10011110110100
3111021121002021120
423112332132310
5342241304333
630524343540
74502560602
oct1326763664
9437532246
10190572468
1198633a09
12539a4bb0
1330636198
141b44a872
1511ae5db3
hexb5be7b4

190572468 has 12 divisors (see below), whose sum is σ = 444669120. Its totient is φ = 63524152.

The previous prime is 190572467. The next prime is 190572493. The reversal of 190572468 is 864275091.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1905724682 = 72635731119222048, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190572461) 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, 7940508 + ... + 7940531.

It is an arithmetic number, because the mean of its divisors is an integer number (37055760).

Almost surely, 2190572468 is an apocalyptic number.

It is an amenable number.

190572468 is an abundant number, since it is smaller than the sum of its proper divisors (254096652).

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

190572468 is a wasteful number, since it uses less digits than its factorization.

190572468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15881046 (or 15881044 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 190572468 is about 13804.7987308762. The cubic root of 190572468 is about 575.4665078638.

The spelling of 190572468 in words is "one hundred ninety million, five hundred seventy-two thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 15881039 31762078 47643117 63524156 95286234 190572468