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190513452 = 22315876121
BaseRepresentation
bin10110101101100…
…00000100101100
3111021111002022210
423112300010230
5342232412302
630523210420
74502223543
oct1326600454
9437432283
10190513452
11985a3638
1253976a10
133061536c
141b43315a
1511ad366c
hexb5b012c

190513452 has 12 divisors (see below), whose sum is σ = 444531416. Its totient is φ = 63504480.

The previous prime is 190513451. The next prime is 190513457. The reversal of 190513452 is 254315091.

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

It is not an unprimeable number, because it can be changed into a prime (190513451) 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, 7938049 + ... + 7938072.

Almost surely, 2190513452 is an apocalyptic number.

190513452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

190513452 is an abundant number, since it is smaller than the sum of its proper divisors (254017964).

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

190513452 is a wasteful number, since it uses less digits than its factorization.

190513452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15876128 (or 15876126 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 190513452 is about 13802.6610477835. The cubic root of 190513452 is about 575.4070987265.

The spelling of 190513452 in words is "one hundred ninety million, five hundred thirteen thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 15876121 31752242 47628363 63504484 95256726 190513452