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250351220 = 22571994117
BaseRepresentation
bin11101110110000…
…00111001110100
3122110002011022102
432323000321310
51003042214340
640501521232
76126643640
oct1673007164
9573064272
10250351220
11119353639
126ba13218
133cb36522
142536bc20
1516ea3215
hexeec0e74

250351220 has 48 divisors (see below), whose sum is σ = 632472960. Its totient is φ = 81316224.

The previous prime is 250351181. The next prime is 250351247. The reversal of 250351220 is 22153052.

250351220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 250351192 and 250351201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44399 + ... + 49718.

It is an arithmetic number, because the mean of its divisors is an integer number (13176520).

Almost surely, 2250351220 is an apocalyptic number.

250351220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250351220 is an abundant number, since it is smaller than the sum of its proper divisors (382121740).

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

250351220 is a wasteful number, since it uses less digits than its factorization.

250351220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94152 (or 94150 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 250351220 is about 15822.4909543346. The cubic root of 250351220 is about 630.2553932198.

The spelling of 250351220 in words is "two hundred fifty million, three hundred fifty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 76 95 133 140 190 266 380 532 665 1330 2660 94117 188234 376468 470585 658819 941170 1317638 1788223 1882340 2635276 3294095 3576446 6588190 7152892 8941115 12517561 13176380 17882230 25035122 35764460 50070244 62587805 125175610 250351220