Search a number
-
+
30723768501 = 3591571105609
BaseRepresentation
bin11100100111010001…
…111000000010110101
32221022012012011002220
4130213101320002311
51000410241043001
622040404552553
72135235503046
oct344721700265
987265164086
1030723768501
1112036848018
125b553b2759
132b88306c9a
1416b660c8cd
15bec443c36
hex7274780b5

30723768501 has 16 divisors (see below), whose sum is σ = 41924731200. Its totient is φ = 20007082368.

The previous prime is 30723768473. The next prime is 30723768521. The reversal of 30723768501 is 10586732703.

It is not a de Polignac number, because 30723768501 - 214 = 30723752117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30723768521) 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 15 ways as a sum of consecutive naturals, for example, 525016 + ... + 580593.

It is an arithmetic number, because the mean of its divisors is an integer number (2620295700).

Almost surely, 230723768501 is an apocalyptic number.

It is an amenable number.

30723768501 is a deficient number, since it is larger than the sum of its proper divisors (11200962699).

30723768501 is a wasteful number, since it uses less digits than its factorization.

30723768501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105828.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 30723768501 in words is "thirty billion, seven hundred twenty-three million, seven hundred sixty-eight thousand, five hundred one".

Divisors: 1 3 59 157 177 471 9263 27789 1105609 3316827 65230931 173580613 195692793 520741839 10241256167 30723768501