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123142001010 = 2357586390481
BaseRepresentation
bin111001010101111010…
…1011101000101110010
3102202211222101210121020
41302223311131011302
54004143323013020
6132323132240310
711616400511130
oct1625365350562
9382758353536
10123142001010
11482514a3a76
121ba48010096
13b7c6129972
145d62754750
15330ac48c40
hex1cabd5d172

123142001010 has 32 divisors (see below), whose sum is σ = 337760917632. Its totient is φ = 28146743040.

The previous prime is 123142000987. The next prime is 123142001011. The reversal of 123142001010 is 10100241321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (123142001011) 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, 293195031 + ... + 293195450.

It is an arithmetic number, because the mean of its divisors is an integer number (10555028676).

Almost surely, 2123142001010 is an apocalyptic number.

123142001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123142001010 is an abundant number, since it is smaller than the sum of its proper divisors (214618916622).

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

123142001010 is a wasteful number, since it uses less digits than its factorization.

123142001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586390498.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 123142001010 its reverse (10100241321), we get a palindrome (133242242331).

The spelling of 123142001010 in words is "one hundred twenty-three billion, one hundred forty-two million, one thousand, ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 586390481 1172780962 1759171443 2931952405 3518342886 4104733367 5863904810 8209466734 8795857215 12314200101 17591714430 20523666835 24628400202 41047333670 61571000505 123142001010