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20245135330 = 2572777104147
BaseRepresentation
bin10010110110101101…
…000011111111100010
31221020220210102201001
4102312231003333202
5312430223312310
613144523302214
71314456545110
oct226655037742
957226712631
1020245135330
11864993a902
123b1007a96a
131ba8406024
14da0a96ab0
157d753d93a
hex4b6b43fe2

20245135330 has 32 divisors (see below), whose sum is σ = 41662532736. Its totient is φ = 6938623104.

The previous prime is 20245135327. The next prime is 20245135357. The reversal of 20245135330 is 3353154202.

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, 142317 + ... + 246463.

It is an arithmetic number, because the mean of its divisors is an integer number (1301954148).

Almost surely, 220245135330 is an apocalyptic number.

20245135330 is an abundant number, since it is smaller than the sum of its proper divisors (21417397406).

20245135330 is a wasteful number, since it uses less digits than its factorization.

20245135330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106938.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 20245135330 its reverse (3353154202), we get a palindrome (23598289532).

The spelling of 20245135330 in words is "twenty billion, two hundred forty-five million, one hundred thirty-five thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 2777 5554 13885 19439 27770 38878 97195 104147 194390 208294 520735 729029 1041470 1458058 3645145 7290290 289216219 578432438 1446081095 2024513533 2892162190 4049027066 10122567665 20245135330