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1401155357 = 7732839689
BaseRepresentation
bin101001110000011…
…1110111100011101
310121122112001210212
41103200332330131
510332143432412
6351011342205
746502424020
oct12340767435
93548461725
101401155357
11659a08838
123312b1965
13194394614
14d41331b7
1583022222
hex5383ef1d

1401155357 has 16 divisors (see below), whose sum is σ = 1629160320. Its totient is φ = 1180230912.

The previous prime is 1401155341. The next prime is 1401155359. The reversal of 1401155357 is 7535511041.

It is not a de Polignac number, because 1401155357 - 24 = 1401155341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401155359) 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, 139769 + ... + 149457.

It is an arithmetic number, because the mean of its divisors is an integer number (101822520).

Almost surely, 21401155357 is an apocalyptic number.

It is an amenable number.

1401155357 is a deficient number, since it is larger than the sum of its proper divisors (228004963).

1401155357 is an equidigital number, since it uses as much as digits as its factorization.

1401155357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10052.

The product of its (nonzero) digits is 10500, while the sum is 32.

The square root of 1401155357 is about 37432.0097910866. The cubic root of 1401155357 is about 1118.9965920147.

Adding to 1401155357 its reverse (7535511041), we get a palindrome (8936666398).

The spelling of 1401155357 in words is "one billion, four hundred one million, one hundred fifty-five thousand, three hundred fifty-seven".

Divisors: 1 7 73 283 511 1981 9689 20659 67823 144613 707297 2741987 4951079 19193909 200165051 1401155357