Search a number
-
+
61036331430 = 23518493110017
BaseRepresentation
bin111000110110000011…
…001000000110100110
312211112201121220012210
4320312003020012212
52000000300101210
644012324224250
74260352154064
oct706603100646
9184481556183
1061036331430
1123981466218
12b9b4b3b086
1359a9378159
142d5037b034
1518c370de20
hexe360c81a6

61036331430 has 32 divisors (see below), whose sum is σ = 146496448224. Its totient is φ = 16275326976.

The previous prime is 61036331401. The next prime is 61036331431. The reversal of 61036331430 is 3413363016.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61036331431) 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, 499782 + ... + 609798.

It is an arithmetic number, because the mean of its divisors is an integer number (4578014007).

Almost surely, 261036331430 is an apocalyptic number.

61036331430 is an abundant number, since it is smaller than the sum of its proper divisors (85460116794).

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

61036331430 is a wasteful number, since it uses less digits than its factorization.

61036331430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128520.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 61036331430 its reverse (3413363016), we get a palindrome (64449694446).

The spelling of 61036331430 in words is "sixty-one billion, thirty-six million, three hundred thirty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 18493 36986 55479 92465 110017 110958 184930 220034 277395 330051 550085 554790 660102 1100170 1650255 3300510 2034544381 4069088762 6103633143 10172721905 12207266286 20345443810 30518165715 61036331430