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1031241421 = 7296775821
BaseRepresentation
bin111101011101110…
…111111011001101
32122212110111021201
4331131313323031
54102444211141
6250155025501
734361256520
oct7535677315
92585414251
101031241421
1148a121a41
1224943b291
13135858232
149ad60bb7
1560803031
hex3d777ecd

1031241421 has 16 divisors (see below), whose sum is σ = 1237415040. Its totient is φ = 840692160.

The previous prime is 1031241401. The next prime is 1031241427. The reversal of 1031241421 is 1241421301.

It is not a de Polignac number, because 1031241421 - 27 = 1031241293 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 (1031241427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24310 + ... + 51511.

It is an arithmetic number, because the mean of its divisors is an integer number (77338440).

Almost surely, 21031241421 is an apocalyptic number.

It is an amenable number.

1031241421 is a deficient number, since it is larger than the sum of its proper divisors (206173619).

1031241421 is an equidigital number, since it uses as much as digits as its factorization.

1031241421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75924.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1031241421 is about 32112.9478715362. The cubic root of 1031241421 is about 1010.3072035479.

Adding to 1031241421 its reverse (1241421301), we get a palindrome (2272662722).

The spelling of 1031241421 in words is "one billion, thirty-one million, two hundred forty-one thousand, four hundred twenty-one".

Divisors: 1 7 29 67 203 469 1943 13601 75821 530747 2198809 5080007 15391663 35560049 147320203 1031241421