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34655985 = 3357213231
BaseRepresentation
bin1000010000110…
…0111011110001
32102012201002000
42010030323301
532332442420
63234444213
7600366600
oct204147361
972181060
1034655985
1118620611
12b733669
137245300
144861a37
153098690
hex210cef1

34655985 has 144 divisors (see below), whose sum is σ = 80110080. Its totient is φ = 14152320.

The previous prime is 34655941. The next prime is 34655989. The reversal of 34655985 is 58955643.

It is not a de Polignac number, because 34655985 - 26 = 34655921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 34655985.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34655989) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1117920 + ... + 1117950.

It is an arithmetic number, because the mean of its divisors is an integer number (556320).

Almost surely, 234655985 is an apocalyptic number.

34655985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34655985 is an abundant number, since it is smaller than the sum of its proper divisors (45454095).

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

34655985 is a wasteful number, since it uses less digits than its factorization.

34655985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 59 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 34655985 is about 5886.9334122275. The cubic root of 34655985 is about 326.0313900796.

The spelling of 34655985 in words is "thirty-four million, six hundred fifty-five thousand, nine hundred eighty-five".

Divisors: 1 3 5 7 9 13 15 21 27 31 35 39 45 49 63 65 91 93 105 117 135 147 155 169 189 195 217 245 273 279 315 351 403 441 455 465 507 585 637 651 735 819 837 845 945 1085 1183 1209 1323 1365 1395 1519 1521 1755 1911 1953 2015 2205 2457 2535 2821 3185 3255 3549 3627 4095 4185 4557 4563 5239 5733 5859 5915 6045 6615 7595 7605 8281 8463 9555 9765 10647 10881 12285 13671 14105 15717 17199 17745 18135 19747 22785 22815 24843 25389 26195 28665 29295 31941 36673 41013 41405 42315 47151 53235 54405 59241 68355 74529 76167 78585 85995 98735 110019 124215 126945 141453 159705 177723 183365 205065 223587 235755 256711 296205 330057 372645 380835 533169 550095 707265 770133 888615 990171 1117935 1283555 1650285 2310399 2665845 3850665 4950855 6931197 11551995 34655985