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20031003102 = 2311303500047
BaseRepresentation
bin10010101001111100…
…001101100111011110
31220200222212101111210
4102221330031213132
5312010414044402
613111353525250
71306246500645
oct225174154736
956628771453
1020031003102
118549a85120
123a70413826
131b72c41376
14d8047635c
157c384206c
hex4a9f0d9de

20031003102 has 16 divisors (see below), whose sum is σ = 43704006912. Its totient is φ = 6070000920.

The previous prime is 20031003101. The next prime is 20031003107. The reversal of 20031003102 is 20130013002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031003101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151749958 + ... + 151750089.

It is an arithmetic number, because the mean of its divisors is an integer number (2731500432).

Almost surely, 220031003102 is an apocalyptic number.

20031003102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20031003102 is an abundant number, since it is smaller than the sum of its proper divisors (23673003810).

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

20031003102 is a wasteful number, since it uses less digits than its factorization.

20031003102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303500063.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20031003102 its reverse (20130013002), we get a palindrome (40161016104).

The spelling of 20031003102 in words is "twenty billion, thirty-one million, three thousand, one hundred two".

Divisors: 1 2 3 6 11 22 33 66 303500047 607000094 910500141 1821000282 3338500517 6677001034 10015501551 20031003102