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123401143100 = 22521234011431
BaseRepresentation
bin111001011101101001…
…0000000001100111100
3102210112001000120201102
41302323102000030330
54010211143034400
6132404550432232
711625665260334
oct1627322001474
9383461016642
10123401143100
1148374801294
121baba962678
13b837a20591
145d88d300c4
1533238869d5
hex1cbb48033c

123401143100 has 18 divisors (see below), whose sum is σ = 267780480744. Its totient is φ = 49360457200.

The previous prime is 123401143097. The next prime is 123401143183. The reversal of 123401143100 is 1341104321.

It is a super-2 number, since 2×1234011431002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 617005616 + ... + 617005815.

Almost surely, 2123401143100 is an apocalyptic number.

123401143100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123401143100 is an abundant number, since it is smaller than the sum of its proper divisors (144379337644).

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

123401143100 is a wasteful number, since it uses less digits than its factorization.

123401143100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234011445 (or 1234011438 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123401143100 its reverse (1341104321), we get a palindrome (124742247421).

The spelling of 123401143100 in words is "one hundred twenty-three billion, four hundred one million, one hundred forty-three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1234011431 2468022862 4936045724 6170057155 12340114310 24680228620 30850285775 61700571550 123401143100