Search a number
-
+
2954521990 = 257477191249
BaseRepresentation
bin1011000000011010…
…0110110110000110
321121220110021020101
42300012212312012
522022324200430
61205101354314
7133134010510
oct26006466606
97556407211
102954521990
111286829112
126a556899a
13381150484
14200568bb0
151245addca
hexb01a6d86

2954521990 has 64 divisors (see below), whose sum is σ = 6220800000. Its totient is φ = 989254656.

The previous prime is 2954521979. The next prime is 2954522003. The reversal of 2954521990 is 991254592.

It is a self number, because there is not a number n which added to its sum of digits gives 2954521990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2364886 + ... + 2366134.

It is an arithmetic number, because the mean of its divisors is an integer number (97200000).

Almost surely, 22954521990 is an apocalyptic number.

2954521990 is an abundant number, since it is smaller than the sum of its proper divisors (3266278010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2954521990 is a wasteful number, since it uses less digits than its factorization.

2954521990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029.

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 2954521990 is about 54355.5148076071. The cubic root of 2954521990 is about 1434.9245817422.

The spelling of 2954521990 in words is "two billion, nine hundred fifty-four million, five hundred twenty-one thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 47 70 94 235 329 470 658 719 1249 1438 1645 2498 3290 3595 5033 6245 7190 8743 10066 12490 17486 25165 33793 43715 50330 58703 67586 87430 117406 168965 236551 293515 337930 410921 473102 587030 821842 898031 1182755 1796062 2054605 2365510 4109210 4490155 6286217 8980310 12572434 31431085 42207457 62862170 84414914 211037285 295452199 422074570 590904398 1477260995 2954521990