Search a number
-
+
401630141 = 11311177801
BaseRepresentation
bin10111111100000…
…110001110111101
31000222201220222102
4113330012032331
51310304131031
6103504154445
712644541233
oct2774061675
91028656872
10401630141
11196789740
12b2608a25
1365292593
143b4aa953
15253d67cb
hex17f063bd

401630141 has 8 divisors (see below), whose sum is σ = 452275968. Its totient is φ = 353340000.

The previous prime is 401630129. The next prime is 401630143. The reversal of 401630141 is 141036104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401630141 - 214 = 401613757 is a prime.

It is a super-2 number, since 2×4016301412 = 322613540319359762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401630143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588560 + ... + 589241.

It is an arithmetic number, because the mean of its divisors is an integer number (56534496).

Almost surely, 2401630141 is an apocalyptic number.

It is an amenable number.

401630141 is a deficient number, since it is larger than the sum of its proper divisors (50645827).

401630141 is a wasteful number, since it uses less digits than its factorization.

401630141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177843.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 401630141 is about 20040.7120881470. The cubic root of 401630141 is about 737.8058582361.

Adding to 401630141 its reverse (141036104), we get a palindrome (542666245).

The spelling of 401630141 in words is "four hundred one million, six hundred thirty thousand, one hundred forty-one".

Divisors: 1 11 31 341 1177801 12955811 36511831 401630141