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61037201830 = 25114312904271
BaseRepresentation
bin111000110110000110…
…011100100110100110
312211112210021010011211
4320312012130212212
52000001010424310
644012355022034
74260362440513
oct706606344646
9184483233154
1061037201830
1123981a00160
12b9b529a91a
1359a95c1397
142d5052630a
1518c3831c8a
hexe3619c9a6

61037201830 has 32 divisors (see below), whose sum is σ = 122642201088. Its totient is φ = 21679173600.

The previous prime is 61037201807. The next prime is 61037201837. The reversal of 61037201830 is 3810273016.

61037201830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61037201792 and 61037201801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61037201837) 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, 6447406 + ... + 6456865.

It is an arithmetic number, because the mean of its divisors is an integer number (3832568784).

Almost surely, 261037201830 is an apocalyptic number.

61037201830 is an abundant number, since it is smaller than the sum of its proper divisors (61604999258).

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

61037201830 is a wasteful number, since it uses less digits than its factorization.

61037201830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12904332.

The product of its (nonzero) digits is 6048, while the sum is 31.

Adding to 61037201830 its reverse (3810273016), we get a palindrome (64847474846).

The spelling of 61037201830 in words is "sixty-one billion, thirty-seven million, two hundred one thousand, eight hundred thirty".

Divisors: 1 2 5 10 11 22 43 55 86 110 215 430 473 946 2365 4730 12904271 25808542 64521355 129042710 141946981 283893962 554883653 709734905 1109767306 1419469810 2774418265 5548836530 6103720183 12207440366 30518600915 61037201830