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2102452030 = 257195872693
BaseRepresentation
bin111110101010000…
…1101111100111110
312102112010121222201
41331110031330332
513301211431110
6544342502114
7103046355520
oct17524157476
95375117881
102102452030
11989863368
124a813493a
13276768c73
1415d327a10
15c489db3a
hex7d50df3e

2102452030 has 64 divisors (see below), whose sum is σ = 4562127360. Its totient is φ = 681485184.

The previous prime is 2102452021. The next prime is 2102452039. The reversal of 2102452030 is 302542012.

It is an interprime number because it is at equal distance from previous prime (2102452021) and next prime (2102452039).

It is a super-2 number, since 2×21024520302 = 8840609076902241800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 2102451989 and 2102452007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102452039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 779364 + ... + 782056.

It is an arithmetic number, because the mean of its divisors is an integer number (71283240).

Almost surely, 22102452030 is an apocalyptic number.

2102452030 is an abundant number, since it is smaller than the sum of its proper divisors (2459675330).

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

2102452030 is a wasteful number, since it uses less digits than its factorization.

2102452030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2102452030 is about 45852.5029851152. The cubic root of 2102452030 is about 1281.0773867640.

Adding to 2102452030 its reverse (302542012), we get a palindrome (2404994042).

The spelling of 2102452030 in words is "two billion, one hundred two million, four hundred fifty-two thousand, thirty".

Divisors: 1 2 5 7 10 14 19 35 38 70 95 133 190 266 587 665 1174 1330 2693 2935 4109 5386 5870 8218 11153 13465 18851 20545 22306 26930 37702 41090 51167 55765 78071 94255 102334 111530 156142 188510 255835 358169 390355 511670 716338 780710 1580791 1790845 3161582 3581690 7903955 11065537 15807910 22131074 30035029 55327685 60070058 110655370 150175145 210245203 300350290 420490406 1051226015 2102452030