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12202032431 = 295359239563
BaseRepresentation
bin10110101110100110…
…00011110100101111
31011111101021110202002
423113103003310233
5144442210014211
65334443522515
7611243364401
oct132723036457
934441243662
1012202032431
1151a1802626
12244652943b
1311c5c80c44
1483a7acb71
154b637c03b
hex2d74c3d2f

12202032431 has 32 divisors (see below), whose sum is σ = 13156992000. Its totient is φ = 11295426688.

The previous prime is 12202032413. The next prime is 12202032439. The reversal of 12202032431 is 13423020221.

It is a de Polignac number, because none of the positive numbers 2k-12202032431 is a prime.

It is a super-3 number, since 3×122020324313 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202032439) 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, 21672956 + ... + 21673518.

It is an arithmetic number, because the mean of its divisors is an integer number (411156000).

Almost surely, 212202032431 is an apocalyptic number.

12202032431 is a deficient number, since it is larger than the sum of its proper divisors (954959569).

12202032431 is a wasteful number, since it uses less digits than its factorization.

12202032431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943.

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

Adding to 12202032431 its reverse (13423020221), we get a palindrome (25625052652).

It can be divided in two parts, 122020 and 32431, that added together give a palindrome (154451).

The spelling of 12202032431 in words is "twelve billion, two hundred two million, thirty-two thousand, four hundred thirty-one".

Divisors: 1 29 53 59 239 563 1537 1711 3127 6931 12667 14101 16327 29839 33217 90683 134557 367343 408929 747353 865331 963293 1760501 3902153 7131521 7938863 21673237 51054529 206814109 230227027 420759739 12202032431