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190025961 = 3591073593
BaseRepresentation
bin10110101001110…
…01000011101001
3111020120022121120
423110321003221
5342121312321
630504525453
74465123356
oct1324710351
9436508546
10190025961
11982a0354
1253780889
13304a44c8
141b34762d
1511a38ec6
hexb5390e9

190025961 has 8 divisors (see below), whose sum is σ = 257662560. Its totient is φ = 124536672.

The previous prime is 190025959. The next prime is 190025981. The reversal of 190025961 is 169520091.

190025961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 190025961 - 21 = 190025959 is a prime.

It is a super-2 number, since 2×1900259612 = 72219731707947042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190025911) 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, 536620 + ... + 536973.

It is an arithmetic number, because the mean of its divisors is an integer number (32207820).

Almost surely, 2190025961 is an apocalyptic number.

It is an amenable number.

190025961 is a deficient number, since it is larger than the sum of its proper divisors (67636599).

190025961 is a wasteful number, since it uses less digits than its factorization.

190025961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073655.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 190025961 is about 13784.9904243710. The cubic root of 190025961 is about 574.9158904068.

The spelling of 190025961 in words is "one hundred ninety million, twenty-five thousand, nine hundred sixty-one".

Divisors: 1 3 59 177 1073593 3220779 63341987 190025961