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61213382 = 2154919759
BaseRepresentation
bin1110100110000…
…0101011000110
311021011221222022
43221200223012
5111132312012
610024003142
71342206446
oct351405306
9137157868
1061213382
113160a57a
12186004b2
13c8b3349
1481b6126
155592472
hex3a60ac6

61213382 has 8 divisors (see below), whose sum is σ = 91884000. Its totient is φ = 30585384.

The previous prime is 61213363. The next prime is 61213409. The reversal of 61213382 is 28331216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6782 + ... + 12977.

It is an arithmetic number, because the mean of its divisors is an integer number (11485500).

Almost surely, 261213382 is an apocalyptic number.

61213382 is a deficient number, since it is larger than the sum of its proper divisors (30670618).

61213382 is a wasteful number, since it uses less digits than its factorization.

61213382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21310.

The product of its digits is 1728, while the sum is 26.

The square root of 61213382 is about 7823.8981332837. The cubic root of 61213382 is about 394.1081883149.

Adding to 61213382 its reverse (28331216), we get a palindrome (89544598).

The spelling of 61213382 in words is "sixty-one million, two hundred thirteen thousand, three hundred eighty-two".

Divisors: 1 2 1549 3098 19759 39518 30606691 61213382