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80961200097 = 341658221139
BaseRepresentation
bin100101101100110101…
…0011101111111100001
321201222022210002122120
41023121222131333201
52311302031400342
6101105411254453
75564202563151
oct1133152357741
9251868702576
1080961200097
1131376539a28
12138358aa429
13783330877b
143cc06a6761
15218ca88aec
hex12d9a9dfe1

80961200097 has 8 divisors (see below), whose sum is σ = 110581151520. Its totient is φ = 52657691040.

The previous prime is 80961200093. The next prime is 80961200137. The reversal of 80961200097 is 79000216908.

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

It is not a de Polignac number, because 80961200097 - 22 = 80961200093 is a prime.

It is a super-2 number, since 2×809612000972 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80961200093) 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, 329110447 + ... + 329110692.

It is an arithmetic number, because the mean of its divisors is an integer number (13822643940).

Almost surely, 280961200097 is an apocalyptic number.

It is an amenable number.

80961200097 is a deficient number, since it is larger than the sum of its proper divisors (29619951423).

80961200097 is a wasteful number, since it uses less digits than its factorization.

80961200097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658221183.

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 80961200097 in words is "eighty billion, nine hundred sixty-one million, two hundred thousand, ninety-seven".

Divisors: 1 3 41 123 658221139 1974663417 26987066699 80961200097