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730228151 = 1042970019
BaseRepresentation
bin101011100001100…
…110010110110111
31212220001102201002
4223201212112313
52443414300101
6200243153515
724044560022
oct5341462667
91786042632
10730228151
11345216244
1218467589b
13b8394183
146cda61b9
1544193d6b
hex2b8665b7

730228151 has 4 divisors (see below), whose sum is σ = 730308600. Its totient is φ = 730147704.

The previous prime is 730228123. The next prime is 730228153. The reversal of 730228151 is 151822037.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-730228151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730228153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24581 + ... + 45438.

It is an arithmetic number, because the mean of its divisors is an integer number (182577150).

Almost surely, 2730228151 is an apocalyptic number.

730228151 is a deficient number, since it is larger than the sum of its proper divisors (80449).

730228151 is a wasteful number, since it uses less digits than its factorization.

730228151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80448.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 730228151 is about 27022.7339660516. The cubic root of 730228151 is about 900.5051283759.

It can be divided in two parts, 7302 and 28151, that added together give a palindrome (35453).

The spelling of 730228151 in words is "seven hundred thirty million, two hundred twenty-eight thousand, one hundred fifty-one".

Divisors: 1 10429 70019 730228151