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30695742 = 23271122147
BaseRepresentation
bin111010100011…
…0000100111110
32010202111122100
41311012010332
530324230432
63013525530
7521623650
oct165060476
963674570
1030695742
1116366190
12a3438a6
13648987c
1441106d0
152a6507c
hex1d4613e

30695742 has 48 divisors (see below), whose sum is σ = 82922112. Its totient is φ = 7972560.

The previous prime is 30695741. The next prime is 30695767. The reversal of 30695742 is 24759603.

It is a super-3 number, since 3×306957423 (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30695697 and 30695706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30695741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9688 + ... + 12459.

It is an arithmetic number, because the mean of its divisors is an integer number (1727544).

Almost surely, 230695742 is an apocalyptic number.

30695742 is an abundant number, since it is smaller than the sum of its proper divisors (52226370).

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

30695742 is a wasteful number, since it uses less digits than its factorization.

30695742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22173 (or 22170 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 30695742 is about 5540.3738141032. The cubic root of 30695742 is about 313.1069530756.

The spelling of 30695742 in words is "thirty million, six hundred ninety-five thousand, seven hundred forty-two".

Divisors: 1 2 3 6 7 9 11 14 18 21 22 33 42 63 66 77 99 126 154 198 231 462 693 1386 22147 44294 66441 132882 155029 199323 243617 310058 398646 465087 487234 730851 930174 1395261 1461702 1705319 2192553 2790522 3410638 4385106 5115957 10231914 15347871 30695742