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553212040 = 23519969499
BaseRepresentation
bin100000111110010…
…101100010001000
31102112222002020211
4200332111202020
52113110241130
6130521130504
716465140043
oct4076254210
91375862224
10553212040
11264301437
12135329a34
138a7c6504
1453687c5a
1533879a2a
hex20f95888

553212040 has 32 divisors (see below), whose sum is σ = 1251000000. Its totient is φ = 220169664.

The previous prime is 553212029. The next prime is 553212041. The reversal of 553212040 is 40212355.

It is a super-2 number, since 2×5532120402 = 612087122401923200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (553212041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26790 + ... + 42709.

It is an arithmetic number, because the mean of its divisors is an integer number (39093750).

Almost surely, 2553212040 is an apocalyptic number.

It is an amenable number.

553212040 is an abundant number, since it is smaller than the sum of its proper divisors (697787960).

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

553212040 is a wasteful number, since it uses less digits than its factorization.

553212040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69709 (or 69705 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 553212040 is about 23520.4600295147. The cubic root of 553212040 is about 820.9131410001.

Adding to 553212040 its reverse (40212355), we get a palindrome (593424395).

The spelling of 553212040 in words is "five hundred fifty-three million, two hundred twelve thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 199 398 796 995 1592 1990 3980 7960 69499 138998 277996 347495 555992 694990 1389980 2779960 13830301 27660602 55321204 69151505 110642408 138303010 276606020 553212040