Search a number
-
+
389057002220 = 225791949126341
BaseRepresentation
bin1011010100101011001…
…10101011101011101100
31101012020001101111002202
411222111212223223230
522333242043032340
6454421425441032
740052123645255
oct5522546535354
91335201344082
10389057002220
1113aaa8598187
126349a4a0178
132a8c3481323
1414b8aacdb2c
15a1c0d68c15
hex5a959abaec

389057002220 has 48 divisors (see below), whose sum is σ = 827792784000. Its totient is φ = 153572839680.

The previous prime is 389057002219. The next prime is 389057002231. The reversal of 389057002220 is 22200750983.

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, 3016250 + ... + 3142590.

It is an arithmetic number, because the mean of its divisors is an integer number (17245683000).

Almost surely, 2389057002220 is an apocalyptic number.

It is an amenable number.

389057002220 is an abundant number, since it is smaller than the sum of its proper divisors (438735781780).

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

389057002220 is a wasteful number, since it uses less digits than its factorization.

389057002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128378 (or 128376 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 389057002220 in words is "three hundred eighty-nine billion, fifty-seven million, two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 1949 3898 7796 9745 19490 38980 126341 153971 252682 307942 505364 615884 631705 769855 1263410 1539710 2526820 3079420 9980939 19961878 39923756 49904695 99809390 199618780 246238609 492477218 984954436 1231193045 2462386090 4924772180 19452850111 38905700222 77811400444 97264250555 194528501110 389057002220