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80199294 = 2373121987
BaseRepresentation
bin1001100011110…
…11111001111110
312120220112202020
410301323321332
5131012334134
611542541010
71662453120
oct461737176
9176815666
1080199294
11412a7a0a
1222a37766
1313800006
14a919210
157092b49
hex4c7be7e

80199294 has 48 divisors (see below), whose sum is σ = 189512064. Its totient is φ = 22163760.

The previous prime is 80199293. The next prime is 80199341. The reversal of 80199294 is 49299108.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80199293) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39369 + ... + 41355.

It is an arithmetic number, because the mean of its divisors is an integer number (3948168).

Almost surely, 280199294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80199294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94756032).

80199294 is an abundant number, since it is smaller than the sum of its proper divisors (109312770).

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

80199294 is a wasteful number, since it uses less digits than its factorization.

80199294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061 (or 2030 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 80199294 is about 8955.4058534496. The cubic root of 80199294 is about 431.2444462213.

The spelling of 80199294 in words is "eighty million, one hundred ninety-nine thousand, two hundred ninety-four".

Divisors: 1 2 3 6 7 14 21 31 42 62 93 186 217 434 651 961 1302 1922 1987 2883 3974 5766 5961 6727 11922 13454 13909 20181 27818 40362 41727 61597 83454 123194 184791 369582 431179 862358 1293537 1909507 2587074 3819014 5728521 11457042 13366549 26733098 40099647 80199294