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290681883 = 3233197577
BaseRepresentation
bin10001010100110…
…111010000011011
3202020222011120200
4101110313100123
51043403310013
644502153243
710126520022
oct2124672033
9666864520
10290681883
1113a09a668
1281422823
13482b771b
142a8698b9
151a7bce73
hex1153741b

290681883 has 12 divisors (see below), whose sum is σ = 421146648. Its totient is φ = 193200480.

The previous prime is 290681873. The next prime is 290681927. The reversal of 290681883 is 388186092.

It is not a de Polignac number, because 290681883 - 29 = 290681371 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (290681803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45810 + ... + 51767.

It is an arithmetic number, because the mean of its divisors is an integer number (35095554).

Almost surely, 2290681883 is an apocalyptic number.

290681883 is a deficient number, since it is larger than the sum of its proper divisors (130464765).

290681883 is a wasteful number, since it uses less digits than its factorization.

290681883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97914 (or 97911 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 290681883 is about 17049.3953851742. The cubic root of 290681883 is about 662.4289767460.

The spelling of 290681883 in words is "two hundred ninety million, six hundred eighty-one thousand, eight hundred eighty-three".

Divisors: 1 3 9 331 993 2979 97577 292731 878193 32297987 96893961 290681883