Base | Representation |
---|---|
bin | 101000111001100… |
… | …1011010111110101 |
3 | 10112122100122022010 |
4 | 1101303023113311 |
5 | 10302311323141 |
6 | 344102354433 |
7 | 46002645642 |
oct | 12163132765 |
9 | 3478318263 |
10 | 1372370421 |
11 | 644738234 |
12 | 32372ba19 |
13 | 18b426706 |
14 | d039cdc9 |
15 | 80738416 |
hex | 51ccb5f5 |
1372370421 has 16 divisors (see below), whose sum is σ = 1842785280. Its totient is φ = 908448960.
The previous prime is 1372370411. The next prime is 1372370449. The reversal of 1372370421 is 1240732731.
It is not a de Polignac number, because 1372370421 - 211 = 1372368373 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1372370401) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611820 + ... + 614058.
It is an arithmetic number, because the mean of its divisors is an integer number (115174080).
Almost surely, 21372370421 is an apocalyptic number.
It is an amenable number.
1372370421 is a deficient number, since it is larger than the sum of its proper divisors (470414859).
1372370421 is a wasteful number, since it uses less digits than its factorization.
1372370421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3596.
The product of its (nonzero) digits is 7056, while the sum is 30.
The square root of 1372370421 is about 37045.5182309547. The cubic root of 1372370421 is about 1111.2807285164.
The spelling of 1372370421 in words is "one billion, three hundred seventy-two million, three hundred seventy thousand, four hundred twenty-one".
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