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1401130120 = 235132694481
BaseRepresentation
bin101001110000011…
…1000110010001000
310121122110210012011
41103200320302020
510332142130440
6351011025304
746502260315
oct12340706210
93548423164
101401130120
116599a0885
1233129b234
13194385ca0
14d4127d0c
15830199ea
hex53838c88

1401130120 has 32 divisors (see below), whose sum is σ = 3395047320. Its totient is φ = 517340160.

The previous prime is 1401130111. The next prime is 1401130217. The reversal of 1401130120 is 210311041.

It can be written as a sum of positive squares in 4 ways, for example, as 1286083044 + 115047076 = 35862^2 + 10726^2 .

It is a super-2 number, since 2×14011301202 = 3926331226342428800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 1401130120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346721 + ... + 1347760.

Almost surely, 21401130120 is an apocalyptic number.

1401130120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401130120 is an abundant number, since it is smaller than the sum of its proper divisors (1993917200).

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

1401130120 is a wasteful number, since it uses less digits than its factorization.

1401130120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694505 (or 2694501 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1401130120 is about 37431.6726850404. The cubic root of 1401130120 is about 1118.9898736813.

Adding to 1401130120 its reverse (210311041), we get a palindrome (1611441161).

The spelling of 1401130120 in words is "one billion, four hundred one million, one hundred thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 2694481 5388962 10777924 13472405 21555848 26944810 35028253 53889620 70056506 107779240 140113012 175141265 280226024 350282530 700565060 1401130120