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10015020 = 2232555639
BaseRepresentation
bin100110001101…
…000100101100
3200211211000200
4212031010230
510030440040
6554353500
7151061211
oct46150454
920754020
1010015020
115720484
12342b890
1320c8662
141489b08
15d2c630
hex98d12c

10015020 has 36 divisors (see below), whose sum is σ = 30379440. Its totient is φ = 2670624.

The previous prime is 10015009. The next prime is 10015037. The reversal of 10015020 is 2051001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10014993 and 10015011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27640 + ... + 27999.

Almost surely, 210015020 is an apocalyptic number.

10015020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10015020 is an abundant number, since it is smaller than the sum of its proper divisors (20364420).

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

10015020 is a wasteful number, since it uses less digits than its factorization.

10015020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55654 (or 55649 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 10015020 is about 3164.6516395964. The cubic root of 10015020 is about 215.5512804071.

Adding to 10015020 its reverse (2051001), we get a palindrome (12066021).

The spelling of 10015020 in words is "ten million, fifteen thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 55639 111278 166917 222556 278195 333834 500751 556390 667668 834585 1001502 1112780 1669170 2003004 2503755 3338340 5007510 10015020