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190101653 = 727157379
BaseRepresentation
bin10110101010010…
…11100010010101
3111020201011102222
423111023202111
5342131223103
630510312125
74465560140
oct1325134225
9436634388
10190101653
1198342205
12537b8645
13304ccab1
141b367057
1511a51638
hexb54b895

190101653 has 4 divisors (see below), whose sum is σ = 217259040. Its totient is φ = 162944268.

The previous prime is 190101649. The next prime is 190101673. The reversal of 190101653 is 356101091.

190101653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 190101653 - 22 = 190101649 is a prime.

It is a super-2 number, since 2×1901016532 = 72277276946664818, which contains 22 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 (190101643) 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, 13578683 + ... + 13578696.

It is an arithmetic number, because the mean of its divisors is an integer number (54314760).

Almost surely, 2190101653 is an apocalyptic number.

It is an amenable number.

190101653 is a deficient number, since it is larger than the sum of its proper divisors (27157387).

190101653 is an equidigital number, since it uses as much as digits as its factorization.

190101653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27157386.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 190101653 is about 13787.7356008882. The cubic root of 190101653 is about 574.9922146394.

The spelling of 190101653 in words is "one hundred ninety million, one hundred one thousand, six hundred fifty-three".

Divisors: 1 7 27157379 190101653