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85272152 = 2372191072
BaseRepresentation
bin1010001010100…
…10011001011000
312221110021101212
411011102121120
5133312202102
612243402252
72053541600
oct505223130
9187407355
1085272152
1144152259
1224683388
1314887cc4
14b479c00
157745c52
hex5152658

85272152 has 72 divisors (see below), whose sum is σ = 197624700. Its totient is φ = 34298208.

The previous prime is 85272149. The next prime is 85272163. The reversal of 85272152 is 25127258.

It is a happy number.

It is a super-2 number, since 2×852721522 = 14542679813422208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 796883 + ... + 796989.

Almost surely, 285272152 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 85272152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98812350).

85272152 is an abundant number, since it is smaller than the sum of its proper divisors (112352548).

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

85272152 is a wasteful number, since it uses less digits than its factorization.

85272152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 135 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 85272152 is about 9234.2921764475. The cubic root of 85272152 is about 440.1517245345.

The spelling of 85272152 in words is "eighty-five million, two hundred seventy-two thousand, one hundred fifty-two".

Divisors: 1 2 4 7 8 14 19 28 38 49 56 76 98 107 133 152 196 214 266 392 428 532 749 856 931 1064 1498 1862 2033 2996 3724 4066 5243 5992 7448 8132 10486 11449 14231 16264 20972 22898 28462 41944 45796 56924 80143 91592 99617 113848 160286 199234 217531 320572 398468 435062 561001 641144 796936 870124 1122002 1522717 1740248 2244004 3045434 4488008 6090868 10659019 12181736 21318038 42636076 85272152