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10031342420 = 2251145597011
BaseRepresentation
bin10010101011110101…
…00010001101010100
3221220002201222211202
421111322202031110
5131021010424140
64335222252032
7503405001161
oct112572421524
927802658752
1010031342420
114288482040
121b3b587018
13c3b342498
146b23a1068
153da9ee915
hex255ea2354

10031342420 has 24 divisors (see below), whose sum is σ = 22980894048. Its totient is φ = 3647760800.

The previous prime is 10031342407. The next prime is 10031342437. The reversal of 10031342420 is 2424313001.

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

It is a junction number, because it is equal to n+sod(n) for n = 10031342392 and 10031342401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22798286 + ... + 22798725.

It is an arithmetic number, because the mean of its divisors is an integer number (957537252).

Almost surely, 210031342420 is an apocalyptic number.

10031342420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10031342420 is an abundant number, since it is smaller than the sum of its proper divisors (12949551628).

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

10031342420 is a wasteful number, since it uses less digits than its factorization.

10031342420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45597031 (or 45597029 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 10031342420 its reverse (2424313001), we get a palindrome (12455655421).

The spelling of 10031342420 in words is "ten billion, thirty-one million, three hundred forty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 45597011 91194022 182388044 227985055 455970110 501567121 911940220 1003134242 2006268484 2507835605 5015671210 10031342420