Base | Representation |
---|---|
bin | 100100101011110… |
… | …1111101011111100 |
3 | 10011210021022121010 |
4 | 1021113233223330 |
5 | 10010111231104 |
6 | 322051435220 |
7 | 42334666521 |
oct | 11127575374 |
9 | 3153238533 |
10 | 1230961404 |
11 | 581933582 |
12 | 2a42b5b10 |
13 | 168044c3a |
14 | b96ad148 |
15 | 73104489 |
hex | 495efafc |
1230961404 has 12 divisors (see below), whose sum is σ = 2872243304. Its totient is φ = 410320464.
The previous prime is 1230961397. The next prime is 1230961447. The reversal of 1230961404 is 4041690321.
It is a tau number, because it is divible by the number of its divisors (12).
It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51290047 + ... + 51290070.
Almost surely, 21230961404 is an apocalyptic number.
It is an amenable number.
1230961404 is an abundant number, since it is smaller than the sum of its proper divisors (1641281900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230961404 is a wasteful number, since it uses less digits than its factorization.
1230961404 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 102580124 (or 102580122 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 30.
The square root of 1230961404 is about 35085.0595553150. The cubic root of 1230961404 is about 1071.7203536086.
The spelling of 1230961404 in words is "one billion, two hundred thirty million, nine hundred sixty-one thousand, four hundred four".
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