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20061512 = 232507689
BaseRepresentation
bin100110010000…
…1110101001000
31101202020012222
41030201311020
520113432022
61553553212
7332343242
oct114416510
941666188
1020061512
1110362569
126875808
134205423
142943092
151b64242
hex1321d48

20061512 has 8 divisors (see below), whose sum is σ = 37615350. Its totient is φ = 10030752.

The previous prime is 20061499. The next prime is 20061523. The reversal of 20061512 is 21516002.

It can be written as a sum of positive squares in only one way, i.e., 18438436 + 1623076 = 4294^2 + 1274^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×200615122 = 804928527452288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253837 + ... + 1253852.

Almost surely, 220061512 is an apocalyptic number.

It is an amenable number.

20061512 is a deficient number, since it is larger than the sum of its proper divisors (17553838).

20061512 is a wasteful number, since it uses less digits than its factorization.

20061512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507695 (or 2507691 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 20061512 is about 4479.0079258693. The cubic root of 20061512 is about 271.7197589452.

Adding to 20061512 its reverse (21516002), we get a palindrome (41577514).

The spelling of 20061512 in words is "twenty million, sixty-one thousand, five hundred twelve".

Divisors: 1 2 4 8 2507689 5015378 10030756 20061512