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10257228 = 2232714013
BaseRepresentation
bin100111001000…
…001101001100
3201022010021100
4213020031030
510111212403
61003503100
7153120312
oct47101514
921263240
1010257228
115876453
123527a90
132181987
1415100b2
15d792a3
hex9c834c

10257228 has 36 divisors (see below), whose sum is σ = 26299728. Its totient is φ = 3370080.

The previous prime is 10257197. The next prime is 10257229. The reversal of 10257228 is 82275201.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (10257229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550 + ... + 4562.

It is an arithmetic number, because the mean of its divisors is an integer number (730548).

Almost surely, 210257228 is an apocalyptic number.

10257228 is a gapful number since it is divisible by the number (18) 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 10257228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13149864).

10257228 is an abundant number, since it is smaller than the sum of its proper divisors (16042500).

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

10257228 is a wasteful number, since it uses less digits than its factorization.

10257228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4094 (or 4089 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 10257228 is about 3202.6907437341. The cubic root of 10257228 is about 217.2751223109.

The spelling of 10257228 in words is "ten million, two hundred fifty-seven thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 71 142 213 284 426 639 852 1278 2556 4013 8026 12039 16052 24078 36117 48156 72234 144468 284923 569846 854769 1139692 1709538 2564307 3419076 5128614 10257228