Search a number
-
+
2989402295880 = 23357211133555257
BaseRepresentation
bin101011100000000110010…
…000110000111001001000
3101120210011120211010102010
4223200012100300321020
5342434243441432010
610205151253535520
7425656114154400
oct53400620607110
911523146733363
102989402295880
11a52886731820
124034489445a0
13188b9006bb70
14a498b627800
1552b6416d620
hex2b806430e48

2989402295880 has 384 divisors, whose sum is σ = 12256254218880. Its totient is φ = 573391687680.

The previous prime is 2989402295837. The next prime is 2989402295899. The reversal of 2989402295880 is 885922049892.

It is a super-2 number, since 2×29894022958802 (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 936789 + ... + 2618468.

It is an arithmetic number, because the mean of its divisors is an integer number (31917328695).

Almost surely, 22989402295880 is an apocalyptic number.

2989402295880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2989402295880 is an abundant number, since it is smaller than the sum of its proper divisors (9266851923000).

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

2989402295880 is a wasteful number, since it uses less digits than its factorization.

2989402295880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555309 (or 3555298 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 66.

The spelling of 2989402295880 in words is "two trillion, nine hundred eighty-nine billion, four hundred two million, two hundred ninety-five thousand, eight hundred eighty".