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2215033056 = 253249915413
BaseRepresentation
bin1000010000000110…
…1011100011100000
312201100222100010100
42010001223203200
514014022024211
61003443502400
7105614320215
oct20401534340
95640870110
102215033056
11a37368135
12519987a00
13293b96062
14170271b0c
15ce6db156
hex8406b8e0

2215033056 has 72 divisors (see below), whose sum is σ = 6312033000. Its totient is φ = 736816896.

The previous prime is 2215033039. The next prime is 2215033097. The reversal of 2215033056 is 6503305122.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136006 + ... + 151418.

It is an arithmetic number, because the mean of its divisors is an integer number (87667125).

Almost surely, 22215033056 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 2215033056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3156016500).

2215033056 is an abundant number, since it is smaller than the sum of its proper divisors (4096999944).

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

2215033056 is a wasteful number, since it uses less digits than its factorization.

2215033056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15928 (or 15917 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 2215033056 is about 47064.1376846533. The cubic root of 2215033056 is about 1303.5471284224.

Adding to 2215033056 its reverse (6503305122), we get a palindrome (8718338178).

The spelling of 2215033056 in words is "two billion, two hundred fifteen million, thirty-three thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 499 998 1497 1996 2994 3992 4491 5988 7984 8982 11976 15413 15968 17964 23952 30826 35928 46239 47904 61652 71856 92478 123304 138717 143712 184956 246608 277434 369912 493216 554868 739824 1109736 1479648 2219472 4438944 7691087 15382174 23073261 30764348 46146522 61528696 69219783 92293044 123057392 138439566 184586088 246114784 276879132 369172176 553758264 738344352 1107516528 2215033056