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12444110140 = 2257118080591
BaseRepresentation
bin10111001011011101…
…00000110100111100
31012010020210021221011
423211232200310330
5200441143011030
65414452245004
7620243122330
oct134556406474
935106707834
1012444110140
115306415150
1224b3610764
13123417b6a7
148609c57c0
154cc748b2a
hex2e5ba0d3c

12444110140 has 48 divisors (see below), whose sum is σ = 32580946944. Its totient is φ = 3878683200.

The previous prime is 12444110131. The next prime is 12444110149. The reversal of 12444110140 is 4101144421.

It is an interprime number because it is at equal distance from previous prime (12444110131) and next prime (12444110149).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444110149) 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, 4038756 + ... + 4041835.

It is an arithmetic number, because the mean of its divisors is an integer number (678769728).

Almost surely, 212444110140 is an apocalyptic number.

12444110140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12444110140 is an abundant number, since it is smaller than the sum of its proper divisors (20136836804).

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

12444110140 is a wasteful number, since it uses less digits than its factorization.

12444110140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8080618 (or 8080616 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12444110140 its reverse (4101144421), we get a palindrome (16545254561).

The spelling of 12444110140 in words is "twelve billion, four hundred forty-four million, one hundred ten thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 8080591 16161182 32322364 40402955 56564137 80805910 88886501 113128274 161611820 177773002 226256548 282820685 355546004 444432505 565641370 622205507 888865010 1131282740 1244411014 1777730020 2488822028 3111027535 6222055070 12444110140