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5551722020 = 22513112918913
BaseRepresentation
bin1010010101110100…
…01000111000100100
3112022220112200220002
411022322020320210
542332220101040
62314520400432
7254401600325
oct51272107044
915286480802
105551722020
112399890a19
1210ab316118
136a6252b20
143a947c44c
152275d9a15
hex14ae88e24

5551722020 has 48 divisors (see below), whose sum is σ = 12567218160. Its totient is φ = 2047942656.

The previous prime is 5551722019. The next prime is 5551722061. The reversal of 5551722020 is 202271555.

It can be written as a sum of positive squares in 8 ways, for example, as 231770176 + 5319951844 = 15224^2 + 72938^2 .

It is a super-3 number, since 3×55517220203 (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284084 + ... + 302996.

It is an arithmetic number, because the mean of its divisors is an integer number (261817045).

Almost surely, 25551722020 is an apocalyptic number.

It is an amenable number.

5551722020 is an abundant number, since it is smaller than the sum of its proper divisors (7015496140).

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

5551722020 is a wasteful number, since it uses less digits than its factorization.

5551722020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20064 (or 20062 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 5551722020 is about 74509.8786739047. The cubic root of 5551722020 is about 1770.6901476266.

Adding to 5551722020 its reverse (202271555), we get a palindrome (5753993575).

The spelling of 5551722020 in words is "five billion, five hundred fifty-one million, seven hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1129 2258 4516 5645 11290 14677 18913 22580 29354 37826 58708 73385 75652 94565 146770 189130 245869 293540 378260 491738 983476 1229345 2458690 4917380 21352777 42705554 85411108 106763885 213527770 277586101 427055540 555172202 1110344404 1387930505 2775861010 5551722020