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7872264 = 2332313527
BaseRepresentation
bin11110000001111100001000
3112210221201100
4132001330020
54003403024
6440421400
7123625131
oct36017410
915727640
107872264
114497604
122777860
13182825a
14108cc88
15a577c9
hex781f08

7872264 has 48 divisors (see below), whose sum is σ = 22014720. Its totient is φ = 2538720.

The previous prime is 7872239. The next prime is 7872269. The reversal of 7872264 is 4622787.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a d-powerful number, because it can be written as 72 + 87 + 78 + 211 + 213 + 6 + 42 .

It is not an unprimeable number, because it can be changed into a prime (7872269) 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, 469 + ... + 3995.

It is an arithmetic number, because the mean of its divisors is an integer number (458640).

Almost surely, 27872264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7872264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11007360).

7872264 is an abundant number, since it is smaller than the sum of its proper divisors (14142456).

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

7872264 is a wasteful number, since it uses less digits than its factorization.

7872264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3570 (or 3563 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 7872264 is about 2805.7555132263. The cubic root of 7872264 is about 198.9298170900.

The spelling of 7872264 in words is "seven million, eight hundred seventy-two thousand, two hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 31 36 62 72 93 124 186 248 279 372 558 744 1116 2232 3527 7054 10581 14108 21162 28216 31743 42324 63486 84648 109337 126972 218674 253944 328011 437348 656022 874696 984033 1312044 1968066 2624088 3936132 7872264