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83802940 = 22513322319
BaseRepresentation
bin1001111111010…
…11101100111100
312211200122000121
410333223230330
5132423143230
612152104324
72035212304
oct477535474
9184618017
1083802940
1143339431
12240950a4
1314492350
14b1b6604
15755577a
hex4febb3c

83802940 has 24 divisors (see below), whose sum is σ = 189524160. Its totient is φ = 30942528.

The previous prime is 83802931. The next prime is 83802949. The reversal of 83802940 is 4920838.

It is an interprime number because it is at equal distance from previous prime (83802931) and next prime (83802949).

It is a junction number, because it is equal to n+sod(n) for n = 83802896 and 83802905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83802949) 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, 160900 + ... + 161419.

It is an arithmetic number, because the mean of its divisors is an integer number (7896840).

Almost surely, 283802940 is an apocalyptic number.

It is an amenable number.

83802940 is an abundant number, since it is smaller than the sum of its proper divisors (105721220).

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

83802940 is a wasteful number, since it uses less digits than its factorization.

83802940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322341 (or 322339 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 83802940 is about 9154.3945730999. The cubic root of 83802940 is about 437.6091743869.

The spelling of 83802940 in words is "eighty-three million, eight hundred two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 322319 644638 1289276 1611595 3223190 4190147 6446380 8380294 16760588 20950735 41901470 83802940