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389121012101 = 5636411078247
BaseRepresentation
bin1011010100110010110…
…10110111000110000101
31101012101111211112011002
411222121122313012011
522333404434341401
6454432033423045
740053532013063
oct5523132670605
91335344745132
10389121012101
11140030737808
12634b7a0aa85
132a9038034b3
1414b953d3033
15a1c67aea6b
hex5a996b7185

389121012101 has 8 divisors (see below), whose sum is σ = 390420661824. Its totient is φ = 387823521280.

The previous prime is 389121012019. The next prime is 389121012121. The reversal of 389121012101 is 101210121983.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-389121012101 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 (389121012121) 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, 178241 + ... + 900006.

It is an arithmetic number, because the mean of its divisors is an integer number (48802582728).

Almost surely, 2389121012101 is an apocalyptic number.

It is an amenable number.

389121012101 is a deficient number, since it is larger than the sum of its proper divisors (1299649723).

389121012101 is a wasteful number, since it uses less digits than its factorization.

389121012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079451.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 389121012101 in words is "three hundred eighty-nine billion, one hundred twenty-one million, twelve thousand, one hundred one".

Divisors: 1 563 641 360883 1078247 607053061 691156327 389121012101