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10203430430 = 2517233770529
BaseRepresentation
bin10011000000010101…
…11111111000011110
3222100002112222012202
421200022333320132
5131344034233210
64404250531502
7510564504404
oct114012777036
928302488182
1010203430430
114366630336
121b89136b92
13c67ba5ccb
146cb199474
153eab939a5
hex2602bfe1e

10203430430 has 64 divisors (see below), whose sum is σ = 20840768640. Its totient is φ = 3574923264.

The previous prime is 10203430429. The next prime is 10203430439. The reversal of 10203430430 is 3403430201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203430439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109406 + ... + 179934.

It is an arithmetic number, because the mean of its divisors is an integer number (325637010).

Almost surely, 210203430430 is an apocalyptic number.

10203430430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10203430430 is an abundant number, since it is smaller than the sum of its proper divisors (10637338210).

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

10203430430 is a wasteful number, since it uses less digits than its factorization.

10203430430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70613.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 10203430430 its reverse (3403430201), we get a palindrome (13606860631).

The spelling of 10203430430 in words is "ten billion, two hundred three million, four hundred thirty thousand, four hundred thirty".

Divisors: 1 2 5 10 17 23 34 37 46 74 85 115 170 185 230 370 391 629 782 851 1258 1702 1955 3145 3910 4255 6290 8510 14467 28934 70529 72335 141058 144670 352645 705290 1198993 1622167 2397986 2609573 3244334 5219146 5994965 8110835 11989930 13047865 16221670 26095730 27576839 44362741 55153678 60020179 88725482 120040358 137884195 221813705 275768390 300100895 443627410 600201790 1020343043 2040686086 5101715215 10203430430