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32930990821 = 157944634673
BaseRepresentation
bin11110101010110101…
…110000101011100101
310011000000110122220201
4132222311300223211
51014420313201241
623043413230501
72244026542411
oct365265605345
9104000418821
1032930990821
1112a6975a8a3
126470632431
13314a696ab1
141845809d41
15ccb0da931
hex7aad70ae5

32930990821 has 8 divisors (see below), whose sum is σ = 32966282880. Its totient is φ = 32895720192.

The previous prime is 32930990809. The next prime is 32930990839. The reversal of 32930990821 is 12809903923.

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 32930990821 - 27 = 32930990693 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 (32930990881) 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, 7044741 + ... + 7049413.

It is an arithmetic number, because the mean of its divisors is an integer number (4120785360).

Almost surely, 232930990821 is an apocalyptic number.

It is an amenable number.

32930990821 is a deficient number, since it is larger than the sum of its proper divisors (35292059).

32930990821 is a wasteful number, since it uses less digits than its factorization.

32930990821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10715.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 32930990821 in words is "thirty-two billion, nine hundred thirty million, nine hundred ninety thousand, eight hundred twenty-one".

Divisors: 1 1579 4463 4673 7047077 7378667 20855599 32930990821