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61329852 = 22331573617
BaseRepresentation
bin1110100111110…
…1000110111100
311021101212202000
43221331012330
5111200023402
610030302300
71343203143
oct351750674
9137355660
1061329852
113168a031
1218657990
13c92436c
14820675a
1555b6c1c
hex3a7d1bc

61329852 has 48 divisors (see below), whose sum is σ = 160060320. Its totient is φ = 20307456.

The previous prime is 61329823. The next prime is 61329887. The reversal of 61329852 is 25892316.

It is a super-2 number, since 2×613298522 = 7522701492683808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent 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, 15148 + ... + 18764.

It is an arithmetic number, because the mean of its divisors is an integer number (3334590).

Almost surely, 261329852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61329852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80030160).

61329852 is an abundant number, since it is smaller than the sum of its proper divisors (98730468).

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

61329852 is a wasteful number, since it uses less digits than its factorization.

61329852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787 (or 3779 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 61329852 is about 7831.3378167463. The cubic root of 61329852 is about 394.3579849970.

The spelling of 61329852 in words is "sixty-one million, three hundred twenty-nine thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 157 314 471 628 942 1413 1884 2826 3617 4239 5652 7234 8478 10851 14468 16956 21702 32553 43404 65106 97659 130212 195318 390636 567869 1135738 1703607 2271476 3407214 5110821 6814428 10221642 15332463 20443284 30664926 61329852