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13812772470 = 235795369019
BaseRepresentation
bin11001101110100111…
…00010111001110110
31022122122011112200120
430313103202321312
5211242032204340
610202343352410
7666202425450
oct146723427166
938578145616
1013812772470
115948a4a442
122815a52706
1313c18a7363
1495069b2d0
1555c99d4d0
hex3374e2e76

13812772470 has 64 divisors (see below), whose sum is σ = 37926766080. Its totient is φ = 3153846528.

The previous prime is 13812772469. The next prime is 13812772511. The reversal of 13812772470 is 7427721831.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165621 + ... + 234639.

It is an arithmetic number, because the mean of its divisors is an integer number (592605720).

Almost surely, 213812772470 is an apocalyptic number.

13812772470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13812772470 is an abundant number, since it is smaller than the sum of its proper divisors (24113993610).

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

13812772470 is a wasteful number, since it uses less digits than its factorization.

13812772470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69989.

The product of its (nonzero) digits is 131712, while the sum is 42.

The spelling of 13812772470 in words is "thirteen billion, eight hundred twelve million, seven hundred seventy-two thousand, four hundred seventy".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 953 1906 2859 4765 5718 6671 9530 13342 14295 20013 28590 33355 40026 66710 69019 100065 138038 200130 207057 345095 414114 483133 690190 966266 1035285 1449399 2070570 2415665 2898798 4831330 7246995 14493990 65775107 131550214 197325321 328875535 394650642 460425749 657751070 920851498 986626605 1381277247 1973253210 2302128745 2762554494 4604257490 6906386235 13812772470