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290134148 = 221732271847
BaseRepresentation
bin10001010010110…
…001100010000100
3202012221100020012
4101102301202010
51043233243043
644442325352
710122046103
oct2122614204
9665840205
10290134148
11139856097
12811b9858
1348155315
142a76603a
151a710a18
hex114b1884

290134148 has 24 divisors (see below), whose sum is σ = 513196992. Its totient is φ = 143515424.

The previous prime is 290134139. The next prime is 290134151. The reversal of 290134148 is 841431092.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156161 + ... + 158007.

It is an arithmetic number, because the mean of its divisors is an integer number (21383208).

Almost surely, 2290134148 is an apocalyptic number.

It is an amenable number.

290134148 is a deficient number, since it is larger than the sum of its proper divisors (223062844).

290134148 is a wasteful number, since it uses less digits than its factorization.

290134148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251 (or 2249 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 290134148 is about 17033.3246314394. The cubic root of 290134148 is about 662.0126411182.

The spelling of 290134148 in words is "two hundred ninety million, one hundred thirty-four thousand, one hundred forty-eight".

Divisors: 1 2 4 173 227 346 454 692 908 1847 3694 7388 39271 78542 157084 319531 419269 639062 838538 1278124 1677076 72533537 145067074 290134148