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1354540831 = 71131819461
BaseRepresentation
bin101000010111100…
…1010011100011111
310111101210210200221
41100233022130133
510233230301311
6342224302211
745365256430
oct12057123437
93441723627
101354540831
1163566a636
12319771967
13187823167
14cbc7b487
157ddb5671
hex50bca71f

1354540831 has 16 divisors (see below), whose sum is σ = 1570540608. Its totient is φ = 1144281600.

The previous prime is 1354540829. The next prime is 1354540843. The reversal of 1354540831 is 1380454531.

It is not a de Polignac number, because 1354540831 - 21 = 1354540829 is a prime.

It is a super-2 number, since 2×13545408312 = 3669561725692341122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354540861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138441 + ... + 147901.

It is an arithmetic number, because the mean of its divisors is an integer number (98158788).

Almost surely, 21354540831 is an apocalyptic number.

1354540831 is a deficient number, since it is larger than the sum of its proper divisors (215999777).

1354540831 is a wasteful number, since it uses less digits than its factorization.

1354540831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9762.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1354540831 is about 36804.0871507500. The cubic root of 1354540831 is about 1106.4472157741.

The spelling of 1354540831 in words is "one billion, three hundred fifty-four million, five hundred forty thousand, eight hundred thirty-one".

Divisors: 1 7 113 181 791 1267 9461 20453 66227 143171 1069093 1712441 7483651 11987087 193505833 1354540831