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30726093 = 389115079
BaseRepresentation
bin111010100110…
…1011111001101
32010211001021110
41311031133031
530331213333
63014322233
7522111306
oct165153715
963731243
1030726093
1116386a72
12a359379
13649a628
14411b7ad
152a6e063
hex1d4d7cd

30726093 has 8 divisors (see below), whose sum is σ = 41428800. Its totient is φ = 20253728.

The previous prime is 30726083. The next prime is 30726103. The reversal of 30726093 is 39062703.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30726083) and next prime (30726103).

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 30726093 - 26 = 30726029 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30726093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30726083) 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, 57273 + ... + 57806.

It is an arithmetic number, because the mean of its divisors is an integer number (5178600).

Almost surely, 230726093 is an apocalyptic number.

It is an amenable number.

30726093 is a deficient number, since it is larger than the sum of its proper divisors (10702707).

30726093 is a wasteful number, since it uses less digits than its factorization.

30726093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115171.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 30726093 is about 5543.1122124669. The cubic root of 30726093 is about 313.2101159044.

Adding to 30726093 its reverse (39062703), we get a palindrome (69788796).

The spelling of 30726093 in words is "thirty million, seven hundred twenty-six thousand, ninety-three".

Divisors: 1 3 89 267 115079 345237 10242031 30726093