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190254317 = 11432411669
BaseRepresentation
bin10110101011100…
…00110011101101
3111020222220212012
423111300303231
5342201114232
630513451005
74500064211
oct1325606355
9436886765
10190254317
1198436980
1253870a65
1330554426
141b3a6941
1511a819b2
hexb570ced

190254317 has 16 divisors (see below), whose sum is σ = 213385920. Its totient is φ = 168134400.

The previous prime is 190254307. The next prime is 190254319. The reversal of 190254317 is 713452091.

It is a cyclic number.

It is not a de Polignac number, because 190254317 - 24 = 190254301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190254319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113159 + ... + 114827.

It is an arithmetic number, because the mean of its divisors is an integer number (13336620).

Almost surely, 2190254317 is an apocalyptic number.

It is an amenable number.

190254317 is a deficient number, since it is larger than the sum of its proper divisors (23131603).

190254317 is a wasteful number, since it uses less digits than its factorization.

190254317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 190254317 is about 13793.2707143737. The cubic root of 190254317 is about 575.1460921793.

The spelling of 190254317 in words is "one hundred ninety million, two hundred fifty-four thousand, three hundred seventeen".

Divisors: 1 11 43 241 473 1669 2651 10363 18359 71767 113993 402229 789437 4424519 17295847 190254317