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14278678100 = 2252421339161
BaseRepresentation
bin11010100110001001…
…10101011001010100
31100212002212000001122
431103010311121110
5213220320144400
610320505343112
71013560522061
oct152304653124
940762760048
1014278678100
116067a3a215
122925a97a98
13146728296b
149964d9c68
1558882e685
hex353135654

14278678100 has 36 divisors (see below), whose sum is σ = 31058420988. Its totient is φ = 5697888000.

The previous prime is 14278678039. The next prime is 14278678109. The reversal of 14278678100 is 187687241.

It can be written as a sum of positive squares in 6 ways, for example, as 438567364 + 13840110736 = 20942^2 + 117644^2 .

It is a super-2 number, since 2×142786781002 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14278678109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127481 + ... + 211680.

Almost surely, 214278678100 is an apocalyptic number.

14278678100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14278678100 is an abundant number, since it is smaller than the sum of its proper divisors (16779742888).

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

14278678100 is a wasteful number, since it uses less digits than its factorization.

14278678100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339596 (or 339589 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The spelling of 14278678100 in words is "fourteen billion, two hundred seventy-eight million, six hundred seventy-eight thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 421 842 1684 2105 4210 8420 10525 21050 42100 339161 678322 1356644 1695805 3391610 6783220 8479025 16958050 33916100 142786781 285573562 571147124 713933905 1427867810 2855735620 3569669525 7139339050 14278678100