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1306305152020 = 225116199592489
BaseRepresentation
bin10011000000100101110…
…110101100010000010100
311121212210122121100210001
4103000211312230100110
5132400303104331040
62440035220541044
7163243313404651
oct23004566542024
94555718540701
101306305152020
11464001226230
12191206b51784
139625147601b
1447322b0cc28
1523ea773859a
hex13025dac414

1306305152020 has 48 divisors (see below), whose sum is σ = 2997461275200. Its totient is φ = 474252606720.

The previous prime is 1306305151981. The next prime is 1306305152039. The reversal of 1306305152020 is 202515036031.

It is a self number, because there is not a number n which added to its sum of digits gives 1306305152020.

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, 4660065 + ... + 4932424.

It is an arithmetic number, because the mean of its divisors is an integer number (62447109900).

Almost surely, 21306305152020 is an apocalyptic number.

1306305152020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306305152020 is an abundant number, since it is smaller than the sum of its proper divisors (1691156123180).

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

1306305152020 is a wasteful number, since it uses less digits than its factorization.

1306305152020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9593128 (or 9593126 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 1306305152020 in words is "one trillion, three hundred six billion, three hundred five million, one hundred fifty-two thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 619 1238 2476 3095 6190 6809 12380 13618 27236 34045 68090 136180 9592489 19184978 38369956 47962445 95924890 105517379 191849780 211034758 422069516 527586895 1055173790 2110347580 5937750691 11875501382 23751002764 29688753455 59377506910 65315257601 118755013820 130630515202 261261030404 326576288005 653152576010 1306305152020