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61484742 = 23211476607
BaseRepresentation
bin1110101010001…
…0111011000110
311021200202012200
43222202323012
5111220002432
610033455330
71344416544
oct352427306
9137622180
1061484742
1131785440
1218711546
13c979a07
148246d94
1555e7a7c
hex3aa2ec6

61484742 has 48 divisors (see below), whose sum is σ = 148442112. Its totient is φ = 18232560.

The previous prime is 61484737. The next prime is 61484743. The reversal of 61484742 is 24748416.

It is a junction number, because it is equal to n+sod(n) for n = 61484697 and 61484706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61484743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6003 + ... + 12609.

It is an arithmetic number, because the mean of its divisors is an integer number (3092544).

Almost surely, 261484742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61484742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74221056).

61484742 is an abundant number, since it is smaller than the sum of its proper divisors (86957370).

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

61484742 is a wasteful number, since it uses less digits than its factorization.

61484742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6673 (or 6670 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 61484742 is about 7841.2206957846. The cubic root of 61484742 is about 394.6896927320.

It can be divided in two parts, 61484 and 742, that added together give a palindrome (62226).

The spelling of 61484742 in words is "sixty-one million, four hundred eighty-four thousand, seven hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 33 47 66 94 99 141 198 282 423 517 846 1034 1551 3102 4653 6607 9306 13214 19821 39642 59463 72677 118926 145354 218031 310529 436062 621058 654093 931587 1308186 1863174 2794761 3415819 5589522 6831638 10247457 20494914 30742371 61484742