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1931485342 = 2127139227241
BaseRepresentation
bin111001100100000…
…0010000010011110
311222121102121210011
41303020002002132
512423430012332
6515354233434
765602232413
oct16310020236
94877377704
101931485342
11901300586
1245aa2587a
1324a208947
1414474210a
15b487be47
hex7320209e

1931485342 has 32 divisors (see below), whose sum is σ = 2966261760. Its totient is φ = 943125120.

The previous prime is 1931485333. The next prime is 1931485357. The reversal of 1931485342 is 2435841391.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1931485295 and 1931485304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8014342 + ... + 8014582.

It is an arithmetic number, because the mean of its divisors is an integer number (92695680).

Almost surely, 21931485342 is an apocalyptic number.

1931485342 is a deficient number, since it is larger than the sum of its proper divisors (1034776418).

1931485342 is a wasteful number, since it uses less digits than its factorization.

1931485342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736.

The product of its digits is 103680, while the sum is 40.

The square root of 1931485342 is about 43948.6671242712. The cubic root of 1931485342 is about 1245.3663845364.

The spelling of 1931485342 in words is "one billion, nine hundred thirty-one million, four hundred eighty-five thousand, three hundred forty-two".

Divisors: 1 2 127 139 227 241 254 278 454 482 17653 28829 30607 31553 33499 35306 54707 57658 61214 63106 66998 109414 4007231 4254373 6947789 7604273 8014462 8508746 13895578 15208546 965742671 1931485342