Base | Representation |
---|---|
bin | 11101010000011111… |
… | …010010111101111010 |
3 | 10000002101011002122220 |
4 | 131100133102331322 |
5 | 1003314234340011 |
6 | 22233143424510 |
7 | 2161332250623 |
oct | 352037227572 |
9 | 100071132586 |
10 | 31415152506 |
11 | 12361042061 |
12 | 6108a55136 |
13 | 2c6861a74a |
14 | 1740382a4a |
15 | c3ceb3506 |
hex | 7507d2f7a |
31415152506 has 16 divisors (see below), whose sum is σ = 64291475424. Its totient is φ = 10228189104.
The previous prime is 31415152493. The next prime is 31415152507. The reversal of 31415152506 is 60525151413.
It is not an unprimeable number, because it can be changed into a prime (31415152507) 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, 60881821 + ... + 60882336.
It is an arithmetic number, because the mean of its divisors is an integer number (4018217214).
Almost surely, 231415152506 is an apocalyptic number.
31415152506 is an abundant number, since it is smaller than the sum of its proper divisors (32876322918).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31415152506 is a wasteful number, since it uses less digits than its factorization.
31415152506 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 121764205.
The product of its (nonzero) digits is 18000, while the sum is 33.
It can be divided in two parts, 31415 and 152506, that added together give a triangular number (183921 = T606).
The spelling of 31415152506 in words is "thirty-one billion, four hundred fifteen million, one hundred fifty-two thousand, five hundred six".
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