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25131013098 = 23113223359463
BaseRepresentation
bin10111011001111011…
…001101001111101010
32101212102102201222220
4113121323031033222
5402432014404343
615313420454510
71546525041522
oct273173151752
971772381886
1025131013098
11a726890114
124a543aa436
1324a6718169
14130592c682
159c1451183
hex5d9ecd3ea

25131013098 has 64 divisors (see below), whose sum is σ = 51186401280. Its totient is φ = 8224812288.

The previous prime is 25131013097. The next prime is 25131013109. The reversal of 25131013098 is 89031013152.

It is not an unprimeable number, because it can be changed into a prime (25131013097) 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, 54278415 + ... + 54278877.

It is an arithmetic number, because the mean of its divisors is an integer number (799787520).

Almost surely, 225131013098 is an apocalyptic number.

25131013098 is an abundant number, since it is smaller than the sum of its proper divisors (26055388182).

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

25131013098 is a wasteful number, since it uses less digits than its factorization.

25131013098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 25131013098 in words is "twenty-five billion, one hundred thirty-one million, thirteen thousand, ninety-eight".

Divisors: 1 2 3 6 113 223 226 339 359 446 463 669 678 718 926 1077 1338 1389 2154 2778 25199 40567 50398 52319 75597 80057 81134 103249 104638 121701 151194 156957 160114 166217 206498 240171 243402 309747 313914 332434 480342 498651 619494 997302 9046441 11667137 18092882 18782521 23334274 27139323 35001411 37066391 37565042 54278646 56347563 70002822 74132782 111199173 112695126 222398346 4188502183 8377004366 12565506549 25131013098