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70074774 = 23371119887
BaseRepresentation
bin1000010110101…
…00000110010110
311212212011112000
410023110012112
5120414343044
610541540130
71510424430
oct413240626
9155764460
1070074774
1136612240
121b574646
1311696883
149441650
156242d69
hex42d4196

70074774 has 128 divisors (see below), whose sum is σ = 204595200. Its totient is φ = 17223840.

The previous prime is 70074757. The next prime is 70074811. The reversal of 70074774 is 47747007.

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 63 ways as a sum of consecutive naturals, for example, 78559 + ... + 79445.

It is an arithmetic number, because the mean of its divisors is an integer number (1598400).

Almost surely, 270074774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70074774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102297600).

70074774 is an abundant number, since it is smaller than the sum of its proper divisors (134520426).

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

70074774 is a wasteful number, since it uses less digits than its factorization.

70074774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 36.

The square root of 70074774 is about 8371.0676738395. The cubic root of 70074774 is about 412.2752229927.

It can be divided in two parts, 7007 and 4774, that added together give a triangular number (11781 = T153).

The spelling of 70074774 in words is "seventy million, seventy-four thousand, seven hundred seventy-four".

Divisors: 1 2 3 6 7 9 11 14 18 19 21 22 27 33 38 42 54 57 63 66 77 99 114 126 133 154 171 189 198 209 231 266 297 342 378 399 418 462 513 594 627 693 798 887 1026 1197 1254 1386 1463 1774 1881 2079 2394 2661 2926 3591 3762 4158 4389 5322 5643 6209 7182 7983 8778 9757 11286 12418 13167 15966 16853 18627 19514 23949 26334 29271 33706 37254 39501 47898 50559 55881 58542 68299 79002 87813 101118 111762 117971 136598 151677 167643 175626 185383 204897 235942 263439 303354 335286 353913 370766 409794 455031 526878 556149 614691 707826 910062 1061739 1112298 1229382 1297681 1668447 1844073 2123478 2595362 3185217 3336894 3688146 3893043 5005341 6370434 7786086 10010682 11679129 23358258 35037387 70074774