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102003201431 = 19147115592341
BaseRepresentation
bin101111011111111011…
…1010101010110010111
3100202021210000112000022
41132333313111112113
53132400304421211
6114505402335355
710240506622625
oct1367767252627
9322253015008
10102003201431
113a294169a7a
12179287ba55b
139807838031
144d19110515
1529c0030bdb
hex17bfdd5597

102003201431 has 16 divisors (see below), whose sum is σ = 107559628800. Its totient is φ = 96465751200.

The previous prime is 102003201427. The next prime is 102003201437. The reversal of 102003201431 is 134102300201.

It is not a de Polignac number, because 102003201431 - 22 = 102003201427 is a prime.

It is a super-2 number, since 2×1020032014312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102003201437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43571321 + ... + 43573661.

It is an arithmetic number, because the mean of its divisors is an integer number (6722476800).

Almost surely, 2102003201431 is an apocalyptic number.

102003201431 is a deficient number, since it is larger than the sum of its proper divisors (5556427369).

102003201431 is a wasteful number, since it uses less digits than its factorization.

102003201431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 102003201431 its reverse (134102300201), we get a palindrome (236105501632).

The spelling of 102003201431 in words is "one hundred two billion, three million, two hundred one thousand, four hundred thirty-one".

Divisors: 1 19 1471 1559 2341 27949 29621 44479 2293289 3443611 3649619 43572491 65428609 69342761 5368589549 102003201431