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512001530420 = 225108672355763
BaseRepresentation
bin1110111001101011010…
…10110101101000110100
31210221120021012121221012
413130311222311220310
531342034342433140
61031113225411352
751663606126062
oct7346552655064
91727507177835
10512001530420
11188158574986
1283290339b58
13393876ca073
141aad111d032
15d4b95a7265
hex7735ab5a34

512001530420 has 24 divisors (see below), whose sum is σ = 1075302612384. Its totient is φ = 204781679136.

The previous prime is 512001530387. The next prime is 512001530441. The reversal of 512001530420 is 24035100215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960542 + ... + 1395221.

It is an arithmetic number, because the mean of its divisors is an integer number (44804275516).

Almost surely, 2512001530420 is an apocalyptic number.

It is an amenable number.

512001530420 is an abundant number, since it is smaller than the sum of its proper divisors (563301081964).

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

512001530420 is a wasteful number, since it uses less digits than its factorization.

512001530420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366639 (or 2366637 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 512001530420 its reverse (24035100215), we get a palindrome (536036630635).

The spelling of 512001530420 in words is "five hundred twelve billion, one million, five hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 10867 21734 43468 54335 108670 217340 2355763 4711526 9423052 11778815 23557630 47115260 25600076521 51200153042 102400306084 128000382605 256000765210 512001530420