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2115150460 = 225313411533
BaseRepresentation
bin111111000010010…
…1010001001111100
312110102000202221221
41332010222021330
513312434303320
6545515003124
7103262324263
oct17604521174
95412022857
102115150460
11995a46935
124b04394a4
13279293b27
14160cb15da
15c5a5b3aa
hex7e12a27c

2115150460 has 24 divisors (see below), whose sum is σ = 4585101696. Its totient is φ = 818767680.

The previous prime is 2115150451. The next prime is 2115150461. The reversal of 2115150460 is 640515112.

It is a happy number.

It is a super-4 number, since 4×21151504604 (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115150461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1705147 + ... + 1706386.

It is an arithmetic number, because the mean of its divisors is an integer number (191045904).

Almost surely, 22115150460 is an apocalyptic number.

2115150460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115150460 is an abundant number, since it is smaller than the sum of its proper divisors (2469951236).

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

2115150460 is a wasteful number, since it uses less digits than its factorization.

2115150460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411573 (or 3411571 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 2115150460 is about 45990.7649425404. The cubic root of 2115150460 is about 1283.6513701382.

Adding to 2115150460 its reverse (640515112), we get a palindrome (2755665572).

The spelling of 2115150460 in words is "two billion, one hundred fifteen million, one hundred fifty thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 3411533 6823066 13646132 17057665 34115330 68230660 105757523 211515046 423030092 528787615 1057575230 2115150460