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103030253430 = 235132711931483
BaseRepresentation
bin101111111110100010…
…1001110011101110110
3100211221100121011111020
41133331011032131312
53142001221102210
6115155331522010
710305120463416
oct1377505163566
9324840534436
10103030253430
113a77098a385
1217b74759306
13993c557400
144db56a0646
152a302a7770
hex17fd14e776

103030253430 has 192 divisors, whose sum is σ = 273118874112. Its totient is φ = 24857763840.

The previous prime is 103030253383. The next prime is 103030253437. The reversal of 103030253430 is 34352030301.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 103030253430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103030253437) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 69473469 + ... + 69474951.

It is an arithmetic number, because the mean of its divisors is an integer number (1422494136).

Almost surely, 2103030253430 is an apocalyptic number.

103030253430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 103030253430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136559437056).

103030253430 is an abundant number, since it is smaller than the sum of its proper divisors (170088620682).

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

103030253430 is a wasteful number, since it uses less digits than its factorization.

103030253430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

Adding to 103030253430 its reverse (34352030301), we get a palindrome (137382283731).

The spelling of 103030253430 in words is "one hundred three billion, thirty million, two hundred fifty-three thousand, four hundred thirty".