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12919219374 = 232553784317
BaseRepresentation
bin11000000100000101…
…11010010010101110
31020100100210100021110
430002002322102232
5202424310004444
65533543412450
7635102360415
oct140202722256
936310710243
1012919219374
11552a620806
122606754126
1312ab72a209
148a7b3c47c
155092e6cb9
hex3020ba4ae

12919219374 has 16 divisors (see below), whose sum is σ = 25839757008. Its totient is φ = 4306186752.

The previous prime is 12919219373. The next prime is 12919219459. The reversal of 12919219374 is 47391291921.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12919219373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111064 + ... + 195380.

It is an arithmetic number, because the mean of its divisors is an integer number (1614984813).

Almost surely, 212919219374 is an apocalyptic number.

12919219374 is an abundant number, since it is smaller than the sum of its proper divisors (12920537634).

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

12919219374 is a wasteful number, since it uses less digits than its factorization.

12919219374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109859.

The product of its digits is 244944, while the sum is 48.

The spelling of 12919219374 in words is "twelve billion, nine hundred nineteen million, two hundred nineteen thousand, three hundred seventy-four".

Divisors: 1 2 3 6 25537 51074 76611 84317 153222 168634 252951 505902 2153203229 4306406458 6459609687 12919219374