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8091402 = 2311122597
BaseRepresentation
bin11110110111011100001010
3120020002022120
4132313130022
54032411102
6445232110
7125530044
oct36673412
916202276
108091402
114627210
122862636
1318a3c17
141108a94
15a9c6bc
hex7b770a

8091402 has 16 divisors (see below), whose sum is σ = 17654112. Its totient is φ = 2451920.

The previous prime is 8091367. The next prime is 8091409. The reversal of 8091402 is 2041908.

It is not an unprimeable number, because it can be changed into a prime (8091409) 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, 61233 + ... + 61364.

It is an arithmetic number, because the mean of its divisors is an integer number (1103382).

Almost surely, 28091402 is an apocalyptic number.

8091402 is an abundant number, since it is smaller than the sum of its proper divisors (9562710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8091402 is a wasteful number, since it uses less digits than its factorization.

8091402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122613.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 8091402 is about 2844.5389784638. The cubic root of 8091402 is about 200.7588007992.

It can be divided in two parts, 809 and 1402, that added together give a triangular number (2211 = T66).

The spelling of 8091402 in words is "eight million, ninety-one thousand, four hundred two".

Divisors: 1 2 3 6 11 22 33 66 122597 245194 367791 735582 1348567 2697134 4045701 8091402