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874072069 = 1377386981
BaseRepresentation
bin110100000110010…
…100100000000101
32020220201110110121
4310012110200011
53242230301234
6222422221541
730442330033
oct6406244005
92226643417
10874072069
11409433312
122048848b1
1310c119010
148412b553
1551b094b4
hex34194805

874072069 has 8 divisors (see below), whose sum is σ = 942536952. Its totient is φ = 805782720.

The previous prime is 874072057. The next prime is 874072091. The reversal of 874072069 is 960270478.

It can be written as a sum of positive squares in 4 ways, for example, as 71199844 + 802872225 = 8438^2 + 28335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 874072069 - 213 = 874063877 is a prime.

It is a super-2 number, since 2×8740720692 = 1528003963611881522, 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 (874072009) 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, 33442 + ... + 53539.

It is an arithmetic number, because the mean of its divisors is an integer number (117817119).

Almost surely, 2874072069 is an apocalyptic number.

It is an amenable number.

874072069 is a deficient number, since it is larger than the sum of its proper divisors (68464883).

874072069 is a wasteful number, since it uses less digits than its factorization.

874072069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87767.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 874072069 is about 29564.7098582076. The cubic root of 874072069 is about 956.1273635771.

The spelling of 874072069 in words is "eight hundred seventy-four million, seventy-two thousand, sixty-nine".

Divisors: 1 13 773 10049 86981 1130753 67236313 874072069