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61000157150 = 2521220003143
BaseRepresentation
bin111000110011111001…
…001000011111011110
312211110012120001102122
4320303321020133132
51444412020012100
644004553022542
74256432531522
oct706371103736
9184405501378
1061000157150
1123962aa8a19
12b9a49b4a52
1359a1a20a5a
142d49641d82
1518c0465985
hexe33e487de

61000157150 has 12 divisors (see below), whose sum is σ = 113460292392. Its totient is φ = 24400062840.

The previous prime is 61000157131. The next prime is 61000157177. The reversal of 61000157150 is 5175100016.

It is a super-2 number, since 2×610001571502 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 610001522 + ... + 610001621.

It is an arithmetic number, because the mean of its divisors is an integer number (9455024366).

Almost surely, 261000157150 is an apocalyptic number.

61000157150 is a deficient number, since it is larger than the sum of its proper divisors (52460135242).

61000157150 is a wasteful number, since it uses less digits than its factorization.

61000157150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220003155 (or 1220003150 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 26.

Adding to 61000157150 its reverse (5175100016), we get a palindrome (66175257166).

The spelling of 61000157150 in words is "sixty-one billion, one hundred fifty-seven thousand, one hundred fifty".

Divisors: 1 2 5 10 25 50 1220003143 2440006286 6100015715 12200031430 30500078575 61000157150