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1250124980 = 2251323349599
BaseRepresentation
bin100101010000011…
…0110010010110100
310020010022221002012
41022200312102310
510030012444410
6324014303352
742656613146
oct11240662264
93203287065
101250124980
11591732445
122aa7b7b58
1316bcc4730
14bc05ac96
1574b3c605
hex4a8364b4

1250124980 has 96 divisors (see below), whose sum is σ = 2963520000. Its totient is φ = 439515648.

The previous prime is 1250124979. The next prime is 1250124983. The reversal of 1250124980 is 894210521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250124983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2086721 + ... + 2087319.

It is an arithmetic number, because the mean of its divisors is an integer number (30870000).

Almost surely, 21250124980 is an apocalyptic number.

1250124980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1250124980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1481760000).

1250124980 is an abundant number, since it is smaller than the sum of its proper divisors (1713395020).

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

1250124980 is a wasteful number, since it uses less digits than its factorization.

1250124980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 1250124980 is about 35357.1064992598. The cubic root of 1250124980 is about 1077.2532453192.

The spelling of 1250124980 in words is "one billion, two hundred fifty million, one hundred twenty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 13 20 23 26 46 52 65 92 115 130 230 260 299 349 460 598 599 698 1196 1198 1396 1495 1745 2396 2990 2995 3490 4537 5980 5990 6980 7787 8027 9074 11980 13777 15574 16054 18148 22685 27554 31148 32108 38935 40135 45370 55108 68885 77870 80270 90740 104351 137770 155740 160540 179101 208702 209051 275540 358202 417404 418102 521755 716404 836204 895505 1043510 1045255 1791010 2087020 2090510 2717663 3582020 4181020 4808173 5435326 9616346 10870652 13588315 19232692 24040865 27176630 48081730 54353260 62506249 96163460 125012498 250024996 312531245 625062490 1250124980