Search a number
-
+
272123980 = 22519769067
BaseRepresentation
bin10000001110000…
…100100001001100
3200222001022220221
4100032010201030
51024130431410
643000321124
76513005242
oct2016044114
9628038827
10272123980
1112a674857
12771731a4
13444ba80b
14281d8792
1518d544da
hex1038484c

272123980 has 24 divisors (see below), whose sum is σ = 574369488. Its totient is φ = 108295488.

The previous prime is 272123959. The next prime is 272123987. The reversal of 272123980 is 89321272.

It is not an unprimeable number, because it can be changed into a prime (272123987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30594 + ... + 38473.

It is an arithmetic number, because the mean of its divisors is an integer number (23932062).

Almost surely, 2272123980 is an apocalyptic number.

272123980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272123980 is an abundant number, since it is smaller than the sum of its proper divisors (302245508).

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

272123980 is a wasteful number, since it uses less digits than its factorization.

272123980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69273 (or 69271 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 272123980 is about 16496.1807701055. The cubic root of 272123980 is about 648.0207882118.

The spelling of 272123980 in words is "two hundred seventy-two million, one hundred twenty-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 197 394 788 985 1970 3940 69067 138134 276268 345335 690670 1381340 13606199 27212398 54424796 68030995 136061990 272123980