Base | Representation |
---|---|
bin | 111000010110110100… |
… | …1101111011111101110 |
3 | 102120101102220002011021 |
4 | 1300231221233133232 |
5 | 3440324400021304 |
6 | 131333105444354 |
7 | 11513053352560 |
oct | 1605551573756 |
9 | 376342802137 |
10 | 121025001454 |
11 | 47365504965 |
12 | 1b5570406ba |
13 | b5496692c6 |
14 | 5c01521330 |
15 | 3234e74a54 |
hex | 1c2da6f7ee |
121025001454 has 16 divisors (see below), whose sum is σ = 207490291200. Its totient is φ = 51863142744.
The previous prime is 121025001451. The next prime is 121025001479. The reversal of 121025001454 is 454100520121.
It is a super-2 number, since 2×1210250014542 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121025001451) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231114 + ... + 543565.
It is an arithmetic number, because the mean of its divisors is an integer number (12968143200).
Almost surely, 2121025001454 is an apocalyptic number.
121025001454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
121025001454 is a deficient number, since it is larger than the sum of its proper divisors (86465289746).
121025001454 is a wasteful number, since it uses less digits than its factorization.
121025001454 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 785847.
The product of its (nonzero) digits is 1600, while the sum is 25.
Adding to 121025001454 its reverse (454100520121), we get a palindrome (575125521575).
The spelling of 121025001454 in words is "one hundred twenty-one billion, twenty-five million, one thousand, four hundred fifty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.083 sec. • engine limits •