Base | Representation |
---|---|
bin | 1001000001001010001… |
… | …1000011110000011100 |
3 | 112210220100010121120020 |
4 | 2100102203003300130 |
5 | 10014244040043342 |
6 | 155101315352140 |
7 | 14123211203523 |
oct | 2202243036034 |
9 | 483810117506 |
10 | 154930002972 |
11 | 5a783a47378 |
12 | 260398b2650 |
13 | 117c0a70994 |
14 | 76da4314ba |
15 | 406b80b0ec |
hex | 24128c3c1c |
154930002972 has 12 divisors (see below), whose sum is σ = 361503340296. Its totient is φ = 51643334320.
The previous prime is 154930002947. The next prime is 154930002989. The reversal of 154930002972 is 279200039451.
It is a tau number, because it is divible by the number of its divisors (12).
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, 6455416779 + ... + 6455416802.
It is an arithmetic number, because the mean of its divisors is an integer number (30125278358).
Almost surely, 2154930002972 is an apocalyptic number.
154930002972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
154930002972 is an abundant number, since it is smaller than the sum of its proper divisors (206573337324).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
154930002972 is a wasteful number, since it uses less digits than its factorization.
154930002972 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12910833588 (or 12910833586 counting only the distinct ones).
The product of its (nonzero) digits is 136080, while the sum is 42.
The spelling of 154930002972 in words is "one hundred fifty-four billion, nine hundred thirty million, two thousand, nine hundred seventy-two".
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