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83868948 = 223223199509
BaseRepresentation
bin1001111111110…
…11110100010100
312211210222120100
410333323310110
5132432301243
612153334100
72035605612
oct477736424
9184728510
1083868948
1143383a89
1224107330
13144b63c7
14b1d26b2
15756a0d3
hex4ffbd14

83868948 has 72 divisors (see below), whose sum is σ = 222768000. Its totient is φ = 26554176.

The previous prime is 83868943. The next prime is 83868959. The reversal of 83868948 is 84986838.

It is a junction number, because it is equal to n+sod(n) for n = 83868894 and 83868903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83868943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164518 + ... + 165026.

It is an arithmetic number, because the mean of its divisors is an integer number (3094000).

Almost surely, 283868948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83868948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111384000).

83868948 is an abundant number, since it is smaller than the sum of its proper divisors (138899052).

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

83868948 is a wasteful number, since it uses less digits than its factorization.

83868948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 736 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The square root of 83868948 is about 9157.9991264468. Note that the first 3 decimals coincide. The cubic root of 83868948 is about 437.7240395920.

The spelling of 83868948 in words is "eighty-three million, eight hundred sixty-eight thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 199 207 276 398 414 509 597 796 828 1018 1194 1527 1791 2036 2388 3054 3582 4577 4581 6108 7164 9154 9162 11707 13731 18308 18324 23414 27462 35121 41193 46828 54924 70242 82386 101291 105363 140484 164772 202582 210726 303873 405164 421452 607746 911619 1215492 1823238 2329693 3646476 4659386 6989079 9318772 13978158 20967237 27956316 41934474 83868948