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85654842 = 23721373307
BaseRepresentation
bin1010001101011…
…11110100111010
312222011201100120
411012233310322
5133411423332
612255514110
72060024400
oct506576472
9188151316
1085654842
1144393829
1224828936
1314990250
14b539470
1577be32c
hex51afd3a

85654842 has 96 divisors (see below), whose sum is σ = 218256192. Its totient is φ = 22208256.

The previous prime is 85654841. The next prime is 85654861. The reversal of 85654842 is 24845658.

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

It is a junction number, because it is equal to n+sod(n) for n = 85654794 and 85654803.

It is not an unprimeable number, because it can be changed into a prime (85654841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278853 + ... + 279159.

It is an arithmetic number, because the mean of its divisors is an integer number (2273502).

Almost surely, 285654842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85654842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109128096).

85654842 is an abundant number, since it is smaller than the sum of its proper divisors (132601350).

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

85654842 is a wasteful number, since it uses less digits than its factorization.

85654842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 405 counting only the distinct ones).

The product of its digits is 307200, while the sum is 42.

The square root of 85654842 is about 9254.9901134469. The cubic root of 85654842 is about 440.8091893093.

The spelling of 85654842 in words is "eighty-five million, six hundred fifty-four thousand, eight hundred forty-two".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 49 73 78 91 98 146 147 182 219 273 294 307 438 511 546 614 637 921 949 1022 1274 1533 1842 1898 1911 2149 2847 3066 3577 3822 3991 4298 5694 6447 6643 7154 7982 10731 11973 12894 13286 15043 19929 21462 22411 23946 27937 30086 39858 44822 45129 46501 55874 67233 83811 90258 93002 134466 139503 156877 167622 195559 279006 291343 313754 391118 470631 582686 586677 874029 941262 1098139 1173354 1748058 2039401 2196278 3294417 4078802 6118203 6588834 12236406 14275807 28551614 42827421 85654842