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190229961 = 3109581743
BaseRepresentation
bin10110101011010…
…10110111001001
3111020221200110010
423111222313021
5342144324321
630513142133
74466633205
oct1325526711
9436850403
10190229961
119841a649
125385a949
133054630c
141b39bb05
1511a79676
hexb56adc9

190229961 has 8 divisors (see below), whose sum is σ = 255967360. Its totient is φ = 125656272.

The previous prime is 190229953. The next prime is 190229969. The reversal of 190229961 is 169922091.

It is an interprime number because it is at equal distance from previous prime (190229953) and next prime (190229969).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190229961 - 23 = 190229953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190229969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290545 + ... + 291198.

It is an arithmetic number, because the mean of its divisors is an integer number (31995920).

Almost surely, 2190229961 is an apocalyptic number.

It is an amenable number.

190229961 is a deficient number, since it is larger than the sum of its proper divisors (65737399).

190229961 is a wasteful number, since it uses less digits than its factorization.

190229961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581855.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 190229961 is about 13792.3877918220. The cubic root of 190229961 is about 575.1215480914.

The spelling of 190229961 in words is "one hundred ninety million, two hundred twenty-nine thousand, nine hundred sixty-one".

Divisors: 1 3 109 327 581743 1745229 63409987 190229961