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2025143994 = 231927416481
BaseRepresentation
bin111100010110101…
…0011111010111010
312020010122222022010
41320231103322322
513121414101434
6532541510350
7101120303616
oct17055237272
95203588263
102025143994
1194a160725
124862723b6
1326373bc73
14152d62346
15bcbcc9e9
hex78b53eba

2025143994 has 32 divisors (see below), whose sum is σ = 4265674560. Its totient is φ = 639187200.

The previous prime is 2025143993. The next prime is 2025143999. The reversal of 2025143994 is 4993415202.

It is not an unprimeable number, because it can be changed into a prime (2025143993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309234 + ... + 315714.

It is an arithmetic number, because the mean of its divisors is an integer number (133302330).

Almost surely, 22025143994 is an apocalyptic number.

2025143994 is an abundant number, since it is smaller than the sum of its proper divisors (2240530566).

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

2025143994 is a wasteful number, since it uses less digits than its factorization.

2025143994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9246.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 2025143994 is about 45001.5999048923. The cubic root of 2025143994 is about 1265.1789847093.

The spelling of 2025143994 in words is "two billion, twenty-five million, one hundred forty-three thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 19 38 57 114 2741 5482 6481 8223 12962 16446 19443 38886 52079 104158 123139 156237 246278 312474 369417 738834 17764421 35528842 53293263 106586526 337523999 675047998 1012571997 2025143994