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766252020 = 2235103123989
BaseRepresentation
bin101101101011000…
…001001111110100
31222101211122011110
4231223001033310
53032130031040
6204011235020
724663014622
oct5553011764
91871748143
10766252020
11363590536
12194748a70
13c2997c81
1473aa2512
154740c980
hex2dac13f4

766252020 has 48 divisors (see below), whose sum is σ = 2166353280. Its totient is φ = 202348416.

The previous prime is 766252009. The next prime is 766252021. The reversal of 766252020 is 20252667.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766252021) 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, 55815 + ... + 68174.

It is an arithmetic number, because the mean of its divisors is an integer number (45132360).

Almost surely, 2766252020 is an apocalyptic number.

It is an amenable number.

766252020 is an abundant number, since it is smaller than the sum of its proper divisors (1400101260).

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

766252020 is a wasteful number, since it uses less digits than its factorization.

766252020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124104 (or 124102 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 766252020 is about 27681.2575581385. The cubic root of 766252020 is about 915.0760962721.

The spelling of 766252020 in words is "seven hundred sixty-six million, two hundred fifty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 103 206 309 412 515 618 1030 1236 1545 2060 3090 6180 123989 247978 371967 495956 619945 743934 1239890 1487868 1859835 2479780 3719670 7439340 12770867 25541734 38312601 51083468 63854335 76625202 127708670 153250404 191563005 255417340 383126010 766252020