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61003970 = 2531307641
BaseRepresentation
bin1110100010110…
…1100011000010
311020210022201022
43220231203002
5111104111340
610015305442
71340345066
oct350554302
9136708638
1061003970
1131487205
121851b282
13c83bc31
14815daa6
1555503b5
hex3a2d8c2

61003970 has 32 divisors (see below), whose sum is σ = 113895936. Its totient is φ = 23500800.

The previous prime is 61003967. The next prime is 61003991. The reversal of 61003970 is 7930016.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94850 + ... + 95490.

It is an arithmetic number, because the mean of its divisors is an integer number (3559248).

Almost surely, 261003970 is an apocalyptic number.

61003970 is a deficient number, since it is larger than the sum of its proper divisors (52891966).

61003970 is a wasteful number, since it uses less digits than its factorization.

61003970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 61003970 is about 7810.5038249783. The cubic root of 61003970 is about 393.6582579576.

Adding to 61003970 its reverse (7930016), we get a palindrome (68933986).

The spelling of 61003970 in words is "sixty-one million, three thousand, nine hundred seventy".

Divisors: 1 2 5 10 31 62 155 307 310 614 641 1282 1535 3070 3205 6410 9517 19034 19871 39742 47585 95170 99355 196787 198710 393574 983935 1967870 6100397 12200794 30501985 61003970