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8100029 = 72235189
BaseRepresentation
bin11110111001100010111101
3120020112011002
4132321202331
54033200104
6445340045
7125564150
oct36714275
916215132
108100029
114632743
122867625
1318a7b22
14110bc97
15aa001e
hex7b98bd

8100029 has 8 divisors (see below), whose sum is σ = 9300480. Its totient is φ = 6910416.

The previous prime is 8099999. The next prime is 8100073. The reversal of 8100029 is 9200018.

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 8100029 - 220 = 7051453 is a prime.

It is a super-2 number, since 2×81000292 = 131220939601682, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8100529) 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, 1034 + ... + 4155.

It is an arithmetic number, because the mean of its divisors is an integer number (1162560).

Almost surely, 28100029 is an apocalyptic number.

It is an amenable number.

8100029 is a deficient number, since it is larger than the sum of its proper divisors (1200451).

8100029 is a wasteful number, since it uses less digits than its factorization.

8100029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 8100029 is about 2846.0549889277. The cubic root of 8100029 is about 200.8301246979.

The spelling of 8100029 in words is "eight million, one hundred thousand, twenty-nine".

Divisors: 1 7 223 1561 5189 36323 1157147 8100029