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40045420405 = 5172331719919
BaseRepresentation
bin100101010010111001…
…001001111101110101
310211100211112010120201
4211102321021331311
51124003111423110
630221400200501
72615235312544
oct452271117565
9124324463521
1040045420405
1115a8a661071
127917169131
133a125c6343
141d1c63215b
1510959a9b3a
hex952e49f75

40045420405 has 64 divisors (see below), whose sum is σ = 54942105600. Its totient is φ = 27841397760.

The previous prime is 40045420397. The next prime is 40045420489. The reversal of 40045420405 is 50402454004.

It is not a de Polignac number, because 40045420405 - 23 = 40045420397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43574536 + ... + 43575454.

It is an arithmetic number, because the mean of its divisors is an integer number (858470400).

Almost surely, 240045420405 is an apocalyptic number.

It is an amenable number.

40045420405 is a deficient number, since it is larger than the sum of its proper divisors (14896685195).

40045420405 is a wasteful number, since it uses less digits than its factorization.

40045420405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714.

The product of its (nonzero) digits is 12800, while the sum is 28.

Adding to 40045420405 its reverse (50402454004), we get a palindrome (90447874409).

The spelling of 40045420405 in words is "forty billion, forty-five million, four hundred twenty thousand, four hundred five".

Divisors: 1 5 17 23 31 85 115 155 391 527 713 719 919 1955 2635 3565 3595 4595 12121 12223 15623 16537 21137 22289 28489 60605 61115 78115 82685 105685 111445 142445 281129 359329 378913 484313 512647 655247 660761 1405645 1796645 1894565 2421565 2563235 3276235 3303805 8714999 11139199 11232937 15197503 20483591 43574995 55695995 56164685 75987515 102417955 258357551 348221047 471122593 1291787755 1741105235 2355612965 8009084081 40045420405