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202431324430 = 25148791360517
BaseRepresentation
bin1011110010000111011…
…0001110000100001110
3201100111210020202121101
42330201312032010032
511304034404340210
6232555021453314
720424302603266
oct2744166160416
9640453222541
10202431324430
117893a229235
1233295a1123a
1316120c5489a
149b24d767a6
1553ebb36a3a
hex2f21d8e10e

202431324430 has 16 divisors (see below), whose sum is σ = 364401141120. Its totient is φ = 80967028192.

The previous prime is 202431324421. The next prime is 202431324451. The reversal of 202431324430 is 34423134202.

It is a super-2 number, since 2×2024313244302 (a number of 23 digits) contains 22 as substring.

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, 531469 + ... + 829048.

It is an arithmetic number, because the mean of its divisors is an integer number (22775071320).

Almost surely, 2202431324430 is an apocalyptic number.

202431324430 is a deficient number, since it is larger than the sum of its proper divisors (161969816690).

202431324430 is a wasteful number, since it uses less digits than its factorization.

202431324430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375403.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 202431324430 its reverse (34423134202), we get a palindrome (236854458632).

The spelling of 202431324430 in words is "two hundred two billion, four hundred thirty-one million, three hundred twenty-four thousand, four hundred thirty".

Divisors: 1 2 5 10 14879 29758 74395 148790 1360517 2721034 6802585 13605170 20243132443 40486264886 101215662215 202431324430