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20302023120 = 2435531596071
BaseRepresentation
bin10010111010000110…
…000100100111010000
31221101212211122002020
4102322012010213100
5313034304214440
613154314451440
71316050230531
oct227206044720
957355748066
1020302023120
118678a65505
123b27133b80
131bb7133542
14da8464688
157dc5293d0
hex4ba1849d0

20302023120 has 80 divisors (see below), whose sum is σ = 64123788672. Its totient is φ = 5311720960.

The previous prime is 20302023103. The next prime is 20302023151. The reversal of 20302023120 is 2132020302.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20302023120.

It is a congruent number.

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, 785316 + ... + 810755.

Almost surely, 220302023120 is an apocalyptic number.

20302023120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302023120 is an abundant number, since it is smaller than the sum of its proper divisors (43821765552).

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

20302023120 is a wasteful number, since it uses less digits than its factorization.

20302023120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596140 (or 1596134 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20302023120 its reverse (2132020302), we get a palindrome (22434043422).

The spelling of 20302023120 in words is "twenty billion, three hundred two million, twenty-three thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 53 60 80 106 120 159 212 240 265 318 424 530 636 795 848 1060 1272 1590 2120 2544 3180 4240 6360 12720 1596071 3192142 4788213 6384284 7980355 9576426 12768568 15960710 19152852 23941065 25537136 31921420 38305704 47882130 63842840 76611408 84591763 95764260 127685680 169183526 191528520 253775289 338367052 383057040 422958815 507550578 676734104 845917630 1015101156 1268876445 1353468208 1691835260 2030202312 2537752890 3383670520 4060404624 5075505780 6767341040 10151011560 20302023120