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1913214552 = 23379717273
BaseRepresentation
bin111001000001001…
…0101011001011000
311221100001100222020
41302002111121120
512404240331202
6513502454440
765261024664
oct16202253130
94840040866
101913214552
118a1a61457
12454894420
132464ac622
141421478a4
15b2e6d5bc
hex72095658

1913214552 has 16 divisors (see below), whose sum is σ = 4783036440. Its totient is φ = 637738176.

The previous prime is 1913214551. The next prime is 1913214559. The reversal of 1913214552 is 2554123191.

It is a happy number.

It is a super-3 number, since 3×19132145523 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913214551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39858613 + ... + 39858660.

Almost surely, 21913214552 is an apocalyptic number.

1913214552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1913214552 is an abundant number, since it is smaller than the sum of its proper divisors (2869821888).

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

1913214552 is a wasteful number, since it uses less digits than its factorization.

1913214552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79717282 (or 79717278 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 1913214552 is about 43740.3080921934. The cubic root of 1913214552 is about 1241.4271099511.

The spelling of 1913214552 in words is "one billion, nine hundred thirteen million, two hundred fourteen thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 79717273 159434546 239151819 318869092 478303638 637738184 956607276 1913214552