Base | Representation |
---|---|
bin | 10010101110001001… |
… | …010011000111001111 |
3 | 1220212220121011011120 |
4 | 102232021103013033 |
5 | 312131443323401 |
6 | 13122353452023 |
7 | 1311064201512 |
oct | 225611230717 |
9 | 56786534146 |
10 | 20101542351 |
11 | 8585884320 |
12 | 3a8bb71013 |
13 | 1b8473b477 |
14 | d89998d79 |
15 | 7c9b27836 |
hex | 4ae2531cf |
20101542351 has 16 divisors (see below), whose sum is σ = 29266798080. Its totient is φ = 12171006720.
The previous prime is 20101542281. The next prime is 20101542359. The reversal of 20101542351 is 15324510102.
It is a happy number.
It is not a de Polignac number, because 20101542351 - 233 = 11511607759 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20101542359) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258850 + ... + 327423.
It is an arithmetic number, because the mean of its divisors is an integer number (1829174880).
Almost surely, 220101542351 is an apocalyptic number.
20101542351 is a deficient number, since it is larger than the sum of its proper divisors (9165255729).
20101542351 is a wasteful number, since it uses less digits than its factorization.
20101542351 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 587326.
The product of its (nonzero) digits is 1200, while the sum is 24.
The spelling of 20101542351 in words is "twenty billion, one hundred one million, five hundred forty-two thousand, three hundred fifty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •