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52061930 = 255206193
BaseRepresentation
bin1100011010011…
…0011011101010
310121222000112122
43012212123222
5101311440210
65055511242
71201343024
oct306463352
9117860478
1052061930
1127429998
1215528522
13aa2aa9b
146cb3014
154885b55
hex31a66ea

52061930 has 8 divisors (see below), whose sum is σ = 93711492. Its totient is φ = 20824768.

The previous prime is 52061909. The next prime is 52061951. The reversal of 52061930 is 3916025.

It is an interprime number because it is at equal distance from previous prime (52061909) and next prime (52061951).

It can be written as a sum of positive squares in 2 ways, for example, as 50737129 + 1324801 = 7123^2 + 1151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×520619303 (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52061930.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2603087 + ... + 2603106.

Almost surely, 252061930 is an apocalyptic number.

52061930 is a deficient number, since it is larger than the sum of its proper divisors (41649562).

52061930 is a wasteful number, since it uses less digits than its factorization.

52061930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5206200.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 52061930 is about 7215.3953460639. The cubic root of 52061930 is about 373.3992328043.

Adding to 52061930 its reverse (3916025), we get a palindrome (55977955).

The spelling of 52061930 in words is "fifty-two million, sixty-one thousand, nine hundred thirty".

Divisors: 1 2 5 10 5206193 10412386 26030965 52061930