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8198815032 = 233383457319
BaseRepresentation
bin1111010001010111…
…11111110100111000
3210011101111221212000
413220223333310320
5113242344040112
63433321021000
7410113530552
oct75053776470
923141457760
108198815032
1135280210a1
121709924760
13a087a3c55
1457ac5c4d2
1532ebbd7dc
hex1e8affd38

8198815032 has 64 divisors (see below), whose sum is σ = 23048928000. Its totient is φ = 2700005472.

The previous prime is 8198815021. The next prime is 8198815033. The reversal of 8198815032 is 2305188918.

It is a happy number.

It is a super-2 number, since 2×81988150322 (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8198815033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210732 + ... + 246587.

It is an arithmetic number, because the mean of its divisors is an integer number (360139500).

Almost surely, 28198815032 is an apocalyptic number.

It is an amenable number.

8198815032 is an abundant number, since it is smaller than the sum of its proper divisors (14850112968).

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

8198815032 is a wasteful number, since it uses less digits than its factorization.

8198815032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457417 (or 457407 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 8198815032 is about 90547.3082537521. The cubic root of 8198815032 is about 2016.4325354520.

It can be divided in two parts, 81988 and 15032, that added together give a triangular number (97020 = T440).

The spelling of 8198815032 in words is "eight billion, one hundred ninety-eight million, eight hundred fifteen thousand, thirty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 83 108 166 216 249 332 498 664 747 996 1494 1992 2241 2988 4482 5976 8964 17928 457319 914638 1371957 1829276 2743914 3658552 4115871 5487828 8231742 10975656 12347613 16463484 24695226 32926968 37957477 49390452 75914954 98780904 113872431 151829908 227744862 303659816 341617293 455489724 683234586 910979448 1024851879 1366469172 2049703758 2732938344 4099407516 8198815032