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34247474140 = 22511199782263
BaseRepresentation
bin11111111001010011…
…101111101111011100
310021101202122221112011
4133321103233233130
51030114323133030
623422202121004
72321453504245
oct377123575734
9107352587464
1034247474140
1113584896240
1267794b0164
1332ca3535c9
14192c5bbccc
15d56984b2a
hex7f94efbdc

34247474140 has 48 divisors (see below), whose sum is σ = 78852211200. Its totient is φ = 12391030080.

The previous prime is 34247474119. The next prime is 34247474143. The reversal of 34247474140 is 4147474243.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 34247474093 and 34247474102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34247474143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347352 + ... + 434911.

It is an arithmetic number, because the mean of its divisors is an integer number (1642754400).

Almost surely, 234247474140 is an apocalyptic number.

It is an amenable number.

34247474140 is an abundant number, since it is smaller than the sum of its proper divisors (44604737060).

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

34247474140 is a wasteful number, since it uses less digits than its factorization.

34247474140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782482 (or 782480 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 40.

It can be divided in two parts, 342474 and 74140, that added together give a palindrome (416614).

The spelling of 34247474140 in words is "thirty-four billion, two hundred forty-seven million, four hundred seventy-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 199 220 398 796 995 1990 2189 3980 4378 8756 10945 21890 43780 782263 1564526 3129052 3911315 7822630 8604893 15645260 17209786 34419572 43024465 86048930 155670337 172097860 311340674 622681348 778351685 1556703370 1712373707 3113406740 3424747414 6849494828 8561868535 17123737070 34247474140