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461272980 = 223571098269
BaseRepresentation
bin11011011111100…
…111011110010100
31012010222002120110
4123133213132110
51421041213410
6113434403020
714300520120
oct3337473624
91163862513
10461272980
11217416243
1210a590470
1374745abc
1445394580
152a768720
hex1b7e7794

461272980 has 48 divisors (see below), whose sum is σ = 1476074880. Its totient is φ = 105433728.

The previous prime is 461272961. The next prime is 461273011. The reversal of 461272980 is 89272164.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 548715 + ... + 549554.

It is an arithmetic number, because the mean of its divisors is an integer number (30751560).

Almost surely, 2461272980 is an apocalyptic number.

It is an amenable number.

461272980 is an abundant number, since it is smaller than the sum of its proper divisors (1014801900).

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

461272980 is a wasteful number, since it uses less digits than its factorization.

461272980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098288 (or 1098286 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 461272980 is about 21477.2665858577. The cubic root of 461272980 is about 772.6556865130.

The spelling of 461272980 in words is "four hundred sixty-one million, two hundred seventy-two thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 1098269 2196538 3294807 4393076 5491345 6589614 7687883 10982690 13179228 15375766 16474035 21965380 23063649 30751532 32948070 38439415 46127298 65896140 76878830 92254596 115318245 153757660 230636490 461272980