Search a number
-
+
23203430310340 = 2257433854390417
BaseRepresentation
bin1010100011010011110000…
…01110001010000111000100
310001011020002221202021202101
411101221320032022013010
511020131111124412330
6121203301515121444
74613251430260540
oct521517016120704
9101136087667671
1023203430310340
117436579552935
122728b91a43284
13cc40c6a0bc27
145a30a2a52a20
152a3893c924ca
hex151a7838a1c4

23203430310340 has 48 divisors (see below), whose sum is σ = 56983307939712. Its totient is φ = 7770451078656.

The previous prime is 23203430310311. The next prime is 23203430310349. The reversal of 23203430310340 is 4301303430232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 23203430310299 and 23203430310308.

It is not an unprimeable number, because it can be changed into a prime (23203430310349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1927189189 + ... + 1927201228.

It is an arithmetic number, because the mean of its divisors is an integer number (1187152248744).

Almost surely, 223203430310340 is an apocalyptic number.

23203430310340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23203430310340 is an abundant number, since it is smaller than the sum of its proper divisors (33779877629372).

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

23203430310340 is a wasteful number, since it uses less digits than its factorization.

23203430310340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3854390476 (or 3854390474 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 23203430310340 its reverse (4301303430232), we get a palindrome (27504733740572).

The spelling of 23203430310340 in words is "twenty-three trillion, two hundred three billion, four hundred thirty million, three hundred ten thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 43 70 86 140 172 215 301 430 602 860 1204 1505 3010 6020 3854390417 7708780834 15417561668 19271952085 26980732919 38543904170 53961465838 77087808340 107922931676 134903664595 165738787931 269807329190 331477575862 539614658380 662955151724 828693939655 1160171515517 1657387879310 2320343031034 3314775758620 4640686062068 5800857577585 11601715155170 23203430310340