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40235105454 = 2367631158617
BaseRepresentation
bin100101011110001100…
…101111110010101110
310211212001110010112220
4211132030233302232
51124400141333304
630252253540210
72623030516305
oct453614576256
9124761403486
1040235105454
1116077739275
12796a7a4666
133a429ab60b
141d398cb43c
1510a7477ad9
hex95e32fcae

40235105454 has 32 divisors (see below), whose sum is σ = 81801206016. Its totient is φ = 13190506560.

The previous prime is 40235105423. The next prime is 40235105459. The reversal of 40235105454 is 45450153204.

It is a super-2 number, since 2×402351054542 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40235105459) 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, 174354 + ... + 332970.

It is an arithmetic number, because the mean of its divisors is an integer number (2556287688).

Almost surely, 240235105454 is an apocalyptic number.

40235105454 is an abundant number, since it is smaller than the sum of its proper divisors (41566100562).

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

40235105454 is a wasteful number, since it uses less digits than its factorization.

40235105454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159320.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 40235105454 its reverse (45450153204), we get a palindrome (85685258658).

The spelling of 40235105454 in words is "forty billion, two hundred thirty-five million, one hundred five thousand, four hundred fifty-four".

Divisors: 1 2 3 6 67 134 201 402 631 1262 1893 3786 42277 84554 126831 158617 253662 317234 475851 951702 10627339 21254678 31882017 63764034 100087327 200174654 300261981 600523962 6705850909 13411701818 20117552727 40235105454