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312001142101420 = 22519821055637109
BaseRepresentation
bin100011011110000110110110…
…1001111101001010110101100
31111220201000111001002110021011
41012330031231033221112230
5311343311314334221140
63023323202421315004
7122501224104265252
oct10674155517512654
91456630431073234
10312001142101420
119045aa39954aa2
122ababab3265a64
13105127735c6555
145708d15d925d2
152610cebb7ecea
hex11bc36d3e95ac

312001142101420 has 24 divisors (see below), whose sum is σ = 689686735172400. Its totient is φ = 118232011743552.

The previous prime is 312001142101409. The next prime is 312001142101421. The reversal of 312001142101420 is 24101241100213.

It is a junction number, because it is equal to n+sod(n) for n = 312001142101391 and 312001142101400.

It is not an unprimeable number, because it can be changed into a prime (312001142101421) 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, 410527818175 + ... + 410527818934.

It is an arithmetic number, because the mean of its divisors is an integer number (28736947298850).

Almost surely, 2312001142101420 is an apocalyptic number.

It is an amenable number.

312001142101420 is an abundant number, since it is smaller than the sum of its proper divisors (377685593070980).

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

312001142101420 is a wasteful number, since it uses less digits than its factorization.

312001142101420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821055637137 (or 821055637135 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 312001142101420 its reverse (24101241100213), we get a palindrome (336102383201633).

The spelling of 312001142101420 in words is "three hundred twelve trillion, one billion, one hundred forty-two million, one hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 821055637109 1642111274218 3284222548436 4105278185545 8210556371090 15600057105071 16421112742180 31200114210142 62400228420284 78000285525355 156000571050710 312001142101420