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1371118397 = 11225394463
BaseRepresentation
bin101000110111001…
…1001101100111101
310112120000000211212
41101232121230331
510302001242042
6344015454205
745656212505
oct12156315475
93476000755
101371118397
11643a62600
12323227365
1318b0a887c
14d0154a05
158058c482
hex51b99b3d

1371118397 has 12 divisors (see below), whose sum is σ = 1508028480. Its totient is φ = 1245701160.

The previous prime is 1371118393. The next prime is 1371118403. The reversal of 1371118397 is 7938111731.

It is not a de Polignac number, because 1371118397 - 22 = 1371118393 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 (1371118393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304988 + ... + 309450.

It is an arithmetic number, because the mean of its divisors is an integer number (125669040).

Almost surely, 21371118397 is an apocalyptic number.

It is an amenable number.

1371118397 is a deficient number, since it is larger than the sum of its proper divisors (136910083).

1371118397 is a wasteful number, since it uses less digits than its factorization.

1371118397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024 (or 7013 counting only the distinct ones).

The product of its digits is 31752, while the sum is 41.

The square root of 1371118397 is about 37028.6159206633. The cubic root of 1371118397 is about 1110.9426824006.

The spelling of 1371118397 in words is "one billion, three hundred seventy-one million, one hundred eighteen thousand, three hundred ninety-seven".

Divisors: 1 11 121 2539 4463 27929 49093 307219 540023 11331557 124647127 1371118397