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10121432412 = 2237139268711
BaseRepresentation
bin10010110110100100…
…01100110101011100
3222010101021001002010
421123102030311130
5131212041314122
64352201231220
7505550520210
oct113322146534
928111231063
1010121432412
114324314a83
121b65792510
13c53bc6380
146c0332940
153e3897e0c
hex25b48cd5c

10121432412 has 48 divisors (see below), whose sum is σ = 29066680832. Its totient is φ = 2669388480.

The previous prime is 10121432401. The next prime is 10121432429. The reversal of 10121432412 is 21423412101.

10121432412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 15 ways as a sum of consecutive naturals, for example, 4633264 + ... + 4635447.

Almost surely, 210121432412 is an apocalyptic number.

10121432412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10121432412 is an abundant number, since it is smaller than the sum of its proper divisors (18945248420).

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

10121432412 is a wasteful number, since it uses less digits than its factorization.

10121432412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9268738 (or 9268736 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 10121432412 its reverse (21423412101), we get a palindrome (31544844513).

The spelling of 10121432412 in words is "ten billion, one hundred twenty-one million, four hundred thirty-two thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 9268711 18537422 27806133 37074844 55612266 64880977 111224532 120493243 129761954 194642931 240986486 259523908 361479729 389285862 481972972 722959458 778571724 843452701 1445918916 1686905402 2530358103 3373810804 5060716206 10121432412