Base | Representation |
---|---|
bin | 111010001010101… |
… | …010110000110001 |
3 | 2112000021121000000 |
4 | 322022222300301 |
5 | 3444311000441 |
6 | 240500220213 |
7 | 33116541654 |
oct | 7212526061 |
9 | 2460247000 |
10 | 975875121 |
11 | 460946471 |
12 | 23299a669 |
13 | 127241400 |
14 | 9386b89b |
15 | 5aa182b6 |
hex | 3a2aac31 |
975875121 has 63 divisors (see below), whose sum is σ = 1602352209. Its totient is φ = 593790912.
The previous prime is 975875113. The next prime is 975875129. The reversal of 975875121 is 121578579.
The square root of 975875121 is 31239.
It is a perfect power (a square), and thus also a powerful number.
It is an interprime number because it is at equal distance from previous prime (975875113) and next prime (975875129).
It can be written as a sum of positive squares in 4 ways, for example, as 426629025 + 549246096 = 20655^2 + 23436^2 .
It is not a de Polignac number, because 975875121 - 23 = 975875113 is a prime.
It is a super-3 number, since 3×9758751213 (a number of 28 digits) contains 333 as substring.
Its product of digits (176400) is a multiple of the sum of its prime divisors (105).
It is not an unprimeable number, because it can be changed into a prime (975875129) by changing a digit.
It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 10964845 + ... + 10964933.
Almost surely, 2975875121 is an apocalyptic number.
975875121 is the 31239-th square number.
975875121 is the 15620-th centered octagonal number.
It is an amenable number.
975875121 is a deficient number, since it is larger than the sum of its proper divisors (626477088).
975875121 is an frugal number, since it uses more digits than its factorization.
975875121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 222 (or 105 counting only the distinct ones).
The product of its digits is 176400, while the sum is 45.
The cubic root of 975875121 is about 991.8928249983.
Multiplying 975875121 by its product of digits (176400), we get a square (172144371344400 = 131203802).
It can be divided in two parts, 975 and 875121, that added together give a square (876096 = 9362).
The spelling of 975875121 in words is "nine hundred seventy-five million, eight hundred seventy-five thousand, one hundred twenty-one".
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