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12120001032 = 233505000043
BaseRepresentation
bin10110100100110100…
…01000101000001000
31011021122220211211010
423102122020220020
5144310210013112
65322353403520
7606226210656
oct132232105010
934248824733
1012120001032
11515a474187
122422b695a0
1311b1c8c059
1482d937dd6
154ae07663c
hex2d2688a08

12120001032 has 16 divisors (see below), whose sum is σ = 30300002640. Its totient is φ = 4040000336.

The previous prime is 12120000983. The next prime is 12120001051. The reversal of 12120001032 is 23010002121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12120000999 and 12120001017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252499998 + ... + 252500045.

It is an arithmetic number, because the mean of its divisors is an integer number (1893750165).

Almost surely, 212120001032 is an apocalyptic number.

12120001032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120001032 is an abundant number, since it is smaller than the sum of its proper divisors (18180001608).

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

12120001032 is a wasteful number, since it uses less digits than its factorization.

12120001032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505000052 (or 505000048 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12120001032 its reverse (23010002121), we get a palindrome (35130003153).

The spelling of 12120001032 in words is "twelve billion, one hundred twenty million, one thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 24 505000043 1010000086 1515000129 2020000172 3030000258 4040000344 6060000516 12120001032