Base | Representation |
---|---|
bin | 10010101111011… |
… | …01100101111000 |
3 | 101221211010221122 |
4 | 21113231211320 |
5 | 310221223000 |
6 | 23333324412 |
7 | 3616162052 |
oct | 1127554570 |
9 | 357733848 |
10 | 157211000 |
11 | 80817a51 |
12 | 44796708 |
13 | 2675517b |
14 | 16c448d2 |
15 | dc06085 |
hex | 95ed978 |
157211000 has 32 divisors (see below), whose sum is σ = 367876080. Its totient is φ = 62884000.
The previous prime is 157210939. The next prime is 157211009. The reversal of 157211000 is 112751.
It is a self number, because there is not a number n which added to its sum of digits gives 157211000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (157211009) 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, 77606 + ... + 79605.
Almost surely, 2157211000 is an apocalyptic number.
157211000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
157211000 is an abundant number, since it is smaller than the sum of its proper divisors (210665080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
157211000 is a wasteful number, since it uses less digits than its factorization.
157211000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 157232 (or 157218 counting only the distinct ones).
The product of its (nonzero) digits is 70, while the sum is 17.
The square root of 157211000 is about 12538.3810757211. The cubic root of 157211000 is about 539.7106360073.
Adding to 157211000 its reverse (112751), we get a palindrome (157323751).
The spelling of 157211000 in words is "one hundred fifty-seven million, two hundred eleven thousand".
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