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1312345544430 = 235211207321571
BaseRepresentation
bin10011000110001101111…
…000111101011011101110
311122110101121200002102110
4103012031320331123232
5133000140424410210
62442514435304450
7163546101034314
oct23061570753356
94573347602373
101312345544430
11466620935478
12192411a4b126
13969a4a1510b
14477370340b4
152420cb9e420
hex1318de3d6ee

1312345544430 has 32 divisors (see below), whose sum is σ = 3164556475008. Its totient is φ = 348300237600.

The previous prime is 1312345544407. The next prime is 1312345544437. The reversal of 1312345544430 is 344455432131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312345544437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103654456 + ... + 103667115.

It is an arithmetic number, because the mean of its divisors is an integer number (98892389844).

Almost surely, 21312345544430 is an apocalyptic number.

1312345544430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312345544430 is an abundant number, since it is smaller than the sum of its proper divisors (1852210930578).

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

1312345544430 is a wasteful number, since it uses less digits than its factorization.

1312345544430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207321792.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 1312345544430 in words is "one trillion, three hundred twelve billion, three hundred forty-five million, five hundred forty-four thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 211 422 633 1055 1266 2110 3165 6330 207321571 414643142 621964713 1036607855 1243929426 2073215710 3109823565 6219647130 43744851481 87489702962 131234554443 218724257405 262469108886 437448514810 656172772215 1312345544430