Search a number
-
+
73025890 = 2578312569
BaseRepresentation
bin1000101101001…
…00100101100010
312002102002200121
410112210211202
5122143312030
611125110454
71544465320
oct426444542
9162362617
1073025890
1138248483
122055842a
131218abb2
1499acd10
15662747a
hex45a4962

73025890 has 32 divisors (see below), whose sum is σ = 152046720. Its totient is φ = 24733824.

The previous prime is 73025861. The next prime is 73025917. The reversal of 73025890 is 9852037.

It is a super-2 number, since 2×730258902 = 10665561220584200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475 + ... + 12094.

It is an arithmetic number, because the mean of its divisors is an integer number (4751460).

Almost surely, 273025890 is an apocalyptic number.

73025890 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

73025890 is an abundant number, since it is smaller than the sum of its proper divisors (79020830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73025890 is a wasteful number, since it uses less digits than its factorization.

73025890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12666.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 73025890 is about 8545.5187086566. The cubic root of 73025890 is about 417.9833216028.

The spelling of 73025890 in words is "seventy-three million, twenty-five thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 83 166 415 581 830 1162 2905 5810 12569 25138 62845 87983 125690 175966 439915 879830 1043227 2086454 5216135 7302589 10432270 14605178 36512945 73025890