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401230110440 = 23510030752761
BaseRepresentation
bin1011101011010110010…
…11011001111011101000
31102100122102020110021202
411311223023121323220
523033204402013230
6504153401423332
740662566444555
oct5655313317350
91370572213252
10401230110440
11145184a345a5
126591719ab48
132bab3445b43
14155c36cda2c
15a6848d0a45
hex5d6b2d9ee8

401230110440 has 16 divisors (see below), whose sum is σ = 902767748580. Its totient is φ = 160492044160.

The previous prime is 401230110431. The next prime is 401230110487. The reversal of 401230110440 is 44011032104.

It can be written as a sum of positive squares in 2 ways, for example, as 383391302596 + 17838807844 = 619186^2 + 133562^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5015376341 + ... + 5015376420.

Almost surely, 2401230110440 is an apocalyptic number.

401230110440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401230110440 is an abundant number, since it is smaller than the sum of its proper divisors (501537638140).

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

401230110440 is a wasteful number, since it uses less digits than its factorization.

401230110440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10030752772 (or 10030752768 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 401230110440 its reverse (44011032104), we get a palindrome (445241142544).

The spelling of 401230110440 in words is "four hundred one billion, two hundred thirty million, one hundred ten thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 10030752761 20061505522 40123011044 50153763805 80246022088 100307527610 200615055220 401230110440