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16734504020 = 2251397663541
BaseRepresentation
bin11111001010111010…
…00100010001010100
31121012020220212220012
433211131010101110
5233233013112040
611404314255352
71131460636313
oct174535042124
947166825805
1016734504020
117108211613
1232b0427558
131768cb66b0
14b4a72c27a
1567e231865
hex3e5744454

16734504020 has 48 divisors (see below), whose sum is σ = 38235944208. Its totient is φ = 6115184640.

The previous prime is 16734503987. The next prime is 16734504023. The reversal of 16734504020 is 2040543761.

It can be written as a sum of positive squares in 8 ways, for example, as 3628375696 + 13106128324 = 60236^2 + 114482^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16734504023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306551 + ... + 356990.

It is an arithmetic number, because the mean of its divisors is an integer number (796582171).

Almost surely, 216734504020 is an apocalyptic number.

16734504020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16734504020 is an abundant number, since it is smaller than the sum of its proper divisors (21501440188).

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

16734504020 is a wasteful number, since it uses less digits than its factorization.

16734504020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663660 (or 663658 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 16734504020 in words is "sixteen billion, seven hundred thirty-four million, five hundred four thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 97 130 194 260 388 485 970 1261 1940 2522 5044 6305 12610 25220 663541 1327082 2654164 3317705 6635410 8626033 13270820 17252066 34504132 43130165 64363477 86260330 128726954 172520660 257453908 321817385 643634770 836725201 1287269540 1673450402 3346900804 4183626005 8367252010 16734504020