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39136020 = 223571143197
BaseRepresentation
bin1001010101001…
…0101100010100
32201122022112020
42111102230110
540004323040
63514453140
7653436120
oct225225424
981568466
1039136020
1120100520
12111341b0
138153511
1452aa580
153680cd0
hex2552b14

39136020 has 192 divisors, whose sum is σ = 140507136. Its totient is φ = 7902720.

The previous prime is 39135997. The next prime is 39136021. The reversal of 39136020 is 2063193.

It is a super-2 number, since 2×391360202 = 3063256122880800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39136021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 198562 + ... + 198758.

It is an arithmetic number, because the mean of its divisors is an integer number (731808).

Almost surely, 239136020 is an apocalyptic number.

39136020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39136020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70253568).

39136020 is an abundant number, since it is smaller than the sum of its proper divisors (101371116).

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

39136020 is a wasteful number, since it uses less digits than its factorization.

39136020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 39136020 is about 6255.8788351438. The cubic root of 39136020 is about 339.5149369152.

The spelling of 39136020 in words is "thirty-nine million, one hundred thirty-six thousand, twenty".