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31450434101 = 534331370449
BaseRepresentation
bin11101010010100101…
…111000101000110101
310000011211112120220122
4131102211320220311
51003402302342401
622240443541325
72162241164462
oct352245705065
9100154476818
1031450434101
1112379a4a6a9
12611882a845
132c72a21728
141744d28669
15c4113221b
hex752978a35

31450434101 has 8 divisors (see below), whose sum is σ = 32117866200. Its totient is φ = 30785743872.

The previous prime is 31450434079. The next prime is 31450434109. The reversal of 31450434101 is 10143405413.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 448380625 + 31002053476 = 21175^2 + 176074^2 .

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 31450434101 - 218 = 31450171957 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 (31450434109) 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, 662276 + ... + 708173.

It is an arithmetic number, because the mean of its divisors is an integer number (4014733275).

Almost surely, 231450434101 is an apocalyptic number.

It is an amenable number.

31450434101 is a deficient number, since it is larger than the sum of its proper divisors (667432099).

31450434101 is a wasteful number, since it uses less digits than its factorization.

31450434101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370935.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 31450434101 its reverse (10143405413), we get a palindrome (41593839514).

The spelling of 31450434101 in words is "thirty-one billion, four hundred fifty million, four hundred thirty-four thousand, one hundred one".

Divisors: 1 53 433 22949 1370449 72633797 593404417 31450434101