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1400130894 = 234112774457
BaseRepresentation
bin101001101110100…
…0100110101001110
310121120121000111210
41103131010311032
510331413142034
6350533355250
746460626161
oct12335046516
93546530453
101400130894
11659379078
12330a98b26
131940c6226
14d3d47ad8
1582dbd8e9
hex53744d4e

1400130894 has 32 divisors (see below), whose sum is σ = 2871451296. Its totient is φ = 454868480.

The previous prime is 1400130877. The next prime is 1400130899. The reversal of 1400130894 is 4980310041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400130899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311914 + ... + 316370.

It is an arithmetic number, because the mean of its divisors is an integer number (89732853).

Almost surely, 21400130894 is an apocalyptic number.

1400130894 is an abundant number, since it is smaller than the sum of its proper divisors (1471320402).

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

1400130894 is a wasteful number, since it uses less digits than its factorization.

1400130894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1400130894 is about 37418.3229715069. The cubic root of 1400130894 is about 1118.7238052021.

The spelling of 1400130894 in words is "one billion, four hundred million, one hundred thirty thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 41 82 123 246 1277 2554 3831 4457 7662 8914 13371 26742 52357 104714 157071 182737 314142 365474 548211 1096422 5691589 11383178 17074767 34149534 233355149 466710298 700065447 1400130894