Search a number
-
+
381962480020 = 2251173187712671
BaseRepresentation
bin1011000111011101011…
…11001110100110010100
31100111220121210102020021
411203232233032212110
522224224343330040
6451245433314524
736411246340132
oct5435657164624
91314817712207
10381962480020
11137a979536a0
126203a565a44
132a032701cb4
14146b67aa752
159e080cd24a
hex58eebce994

381962480020 has 96 divisors (see below), whose sum is σ = 887570804736. Its totient is φ = 136908979200.

The previous prime is 381962479949. The next prime is 381962480023. The reversal of 381962480020 is 20084269183.

It is a super-2 number, since 2×3819624800202 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381962480023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30138285 + ... + 30150955.

It is an arithmetic number, because the mean of its divisors is an integer number (9245529216).

Almost surely, 2381962480020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381962480020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443785402368).

381962480020 is an abundant number, since it is smaller than the sum of its proper divisors (505608324716).

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

381962480020 is a wasteful number, since it uses less digits than its factorization.

381962480020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14641 (or 14639 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 381962480020 in words is "three hundred eighty-one billion, nine hundred sixty-two million, four hundred eighty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 73 110 146 220 292 365 730 803 1460 1606 1877 3212 3754 4015 7508 8030 9385 12671 16060 18770 20647 25342 37540 41294 50684 63355 82588 103235 126710 137021 139381 206470 253420 274042 278762 412940 548084 557524 685105 696905 924983 1370210 1393810 1507231 1849966 2740420 2787620 3014462 3699932 4624915 6028924 7536155 9249830 10174813 15072310 18499660 20349626 23783467 30144620 40699252 47566934 50874065 95133868 101748130 118917335 203496260 237834670 261618137 475669340 523236274 1046472548 1308090685 1736193091 2616181370 3472386182 5232362740 6944772364 8680965455 17361930910 19098124001 34723861820 38196248002 76392496004 95490620005 190981240010 381962480020