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10121422340 = 2251912649587
BaseRepresentation
bin10010110110100100…
…01010011000000100
3222010101020112021002
421123102022120010
5131212041003330
64352201112432
7505550445641
oct113322123004
928111215232
1010121422340
114324308457
121b65788718
13c53bc1903
146c032cdc8
153e3894e45
hex25b48a604

10121422340 has 24 divisors (see below), whose sum is σ = 21366277632. Its totient is φ = 4027370720.

The previous prime is 10121422331. The next prime is 10121422391. The reversal of 10121422340 is 4322412101.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320974 + ... + 1328613.

It is an arithmetic number, because the mean of its divisors is an integer number (890261568).

Almost surely, 210121422340 is an apocalyptic number.

10121422340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121422340 is an abundant number, since it is smaller than the sum of its proper divisors (11244855292).

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

10121422340 is a wasteful number, since it uses less digits than its factorization.

10121422340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649787 (or 2649785 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10121422340 its reverse (4322412101), we get a palindrome (14443834441).

The spelling of 10121422340 in words is "ten billion, one hundred twenty-one million, four hundred twenty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 191 382 764 955 1910 3820 2649587 5299174 10598348 13247935 26495870 52991740 506071117 1012142234 2024284468 2530355585 5060711170 10121422340