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290031148 = 22116591617
BaseRepresentation
bin10001010010011…
…000011000101100
3202012202002221101
4101102120120230
51043221444043
644440212444
710121136601
oct2122303054
9665662841
10290031148
11139795770
128116a124
134811a484
142a73a6a8
151a6e024d
hex1149862c

290031148 has 12 divisors (see below), whose sum is σ = 553695912. Its totient is φ = 131832320.

The previous prime is 290031107. The next prime is 290031151. The reversal of 290031148 is 841130092.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3295765 + ... + 3295852.

It is an arithmetic number, because the mean of its divisors is an integer number (46141326).

Almost surely, 2290031148 is an apocalyptic number.

It is an amenable number.

290031148 is a deficient number, since it is larger than the sum of its proper divisors (263664764).

290031148 is a wasteful number, since it uses less digits than its factorization.

290031148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6591632 (or 6591630 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 290031148 is about 17030.3008781407. The cubic root of 290031148 is about 661.9342918752.

The spelling of 290031148 in words is "two hundred ninety million, thirty-one thousand, one hundred forty-eight".

Divisors: 1 2 4 11 22 44 6591617 13183234 26366468 72507787 145015574 290031148