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31420040230141 = 163195719849317
BaseRepresentation
bin1110010010011100011000…
…10101100011010011111101
311010020201121121220201120221
413021032030111203103331
513104241220244331031
6150454100041341341
76422010613240213
oct711161425432375
9133221547821527
1031420040230141
11a014189655912
1236354b7a97851
13146bb87b68264
147a8a49350cb3
1539749249ea11
hex1c938c5634fd

31420040230141 has 8 divisors (see below), whose sum is σ = 31614419710944. Its totient is φ = 31225680487440.

The previous prime is 31420040230097. The next prime is 31420040230153. The reversal of 31420040230141 is 14103204002413.

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 31420040230141 - 237 = 31282601276669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420040230171) 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, 1734586 + ... + 8114731.

It is an arithmetic number, because the mean of its divisors is an integer number (3951802463868).

Almost surely, 231420040230141 is an apocalyptic number.

It is an amenable number.

31420040230141 is a deficient number, since it is larger than the sum of its proper divisors (194379480803).

31420040230141 is a wasteful number, since it uses less digits than its factorization.

31420040230141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9869051.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31420040230141 its reverse (14103204002413), we get a palindrome (45523244232554).

The spelling of 31420040230141 in words is "thirty-one trillion, four hundred twenty billion, forty million, two hundred thirty thousand, one hundred forty-one".

Divisors: 1 163 19571 3190073 9849317 1605438671 192760983007 31420040230141