Search a number
-
+
30402657433 = 234481294991
BaseRepresentation
bin11100010100001000…
…111011110010011001
32220110210222000112101
4130110020323302121
5444231040014213
621544454243401
72124256216141
oct342410736231
986423860471
1030402657433
1111991564575
125a85956561
132b36927135
141685b01921
15bce164bdd
hex71423bc99

30402657433 has 8 divisors (see below), whose sum is σ = 31731699456. Its totient is φ = 29074214400.

The previous prime is 30402657431. The next prime is 30402657443. The reversal of 30402657433 is 33475620403.

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 30402657433 - 21 = 30402657431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30402657392 and 30402657401.

It is not an unprimeable number, because it can be changed into a prime (30402657431) 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 7 ways as a sum of consecutive naturals, for example, 44433 + ... + 250558.

It is an arithmetic number, because the mean of its divisors is an integer number (3966462432).

Almost surely, 230402657433 is an apocalyptic number.

It is an amenable number.

30402657433 is a deficient number, since it is larger than the sum of its proper divisors (1329042023).

30402657433 is a wasteful number, since it uses less digits than its factorization.

30402657433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299495.

The product of its (nonzero) digits is 181440, while the sum is 37.

The spelling of 30402657433 in words is "thirty billion, four hundred two million, six hundred fifty-seven thousand, four hundred thirty-three".

Divisors: 1 23 4481 103063 294991 6784793 1321854671 30402657433