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290161377 = 32114368161
BaseRepresentation
bin10001010010111…
…000001011100001
3202012222201120200
4101102320023201
51043240131002
644443055413
710122221352
oct2122701341
9665881520
10290161377
111398745a0
1281211569
134816482c
142a771d29
151a718b1c
hex114b82e1

290161377 has 24 divisors (see below), whose sum is σ = 467863968. Its totient is φ = 171763200.

The previous prime is 290161367. The next prime is 290161397. The reversal of 290161377 is 773161092.

It is a happy number.

It is not a de Polignac number, because 290161377 - 214 = 290144993 is a prime.

It is a super-2 number, since 2×2901613772 = 168387249405072258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (290161337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29824 + ... + 38337.

It is an arithmetic number, because the mean of its divisors is an integer number (19494332).

Almost surely, 2290161377 is an apocalyptic number.

It is an amenable number.

290161377 is a deficient number, since it is larger than the sum of its proper divisors (177702591).

290161377 is a wasteful number, since it uses less digits than its factorization.

290161377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68221 (or 68218 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 290161377 is about 17034.1238988097. The cubic root of 290161377 is about 662.0333503642.

The spelling of 290161377 in words is "two hundred ninety million, one hundred sixty-one thousand, three hundred seventy-seven".

Divisors: 1 3 9 11 33 43 99 129 387 473 1419 4257 68161 204483 613449 749771 2249313 2930923 6747939 8792769 26378307 32240153 96720459 290161377