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870097001 = 19273137241
BaseRepresentation
bin110011110111001…
…010000001101001
32020122020111200212
4303313022001221
53240221101001
6222201110505
730363462644
oct6367120151
92218214625
10870097001
11407168834
12203488435
1310b3568c7
14837b4a5b
15515c17bb
hex33dca069

870097001 has 24 divisors (see below), whose sum is σ = 941566824. Its totient is φ = 803727360.

The previous prime is 870096991. The next prime is 870097003. The reversal of 870097001 is 100790078.

870097001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 279558400 + 590538601 = 16720^2 + 24301^2 .

It is not a de Polignac number, because 870097001 - 26 = 870096937 is a prime.

It is a super-2 number, since 2×8700970012 = 1514137582298388002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870097003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3610241 + ... + 3610481.

It is an arithmetic number, because the mean of its divisors is an integer number (39231951).

Almost surely, 2870097001 is an apocalyptic number.

It is an amenable number.

870097001 is a deficient number, since it is larger than the sum of its proper divisors (71469823).

870097001 is a wasteful number, since it uses less digits than its factorization.

870097001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 870097001 is about 29497.4066826221. The cubic root of 870097001 is about 954.6757489512.

The spelling of 870097001 in words is "eight hundred seventy million, ninety-seven thousand, one".

Divisors: 1 19 73 137 241 361 1387 2603 4579 10001 17593 26353 33017 49457 87001 190019 334267 627323 2410241 3610361 6351073 11919137 45794579 870097001